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A fresco of Jesus in a rose robe seated on a rocky mountain with one hand raised, and the twelve apostles with gold haloes sitting in a ring on the rock before Him.
Fra Angelico, The Sermon on the Mount, 1437. Public domain.

Matthew 5:8 · Passage · Holiness and Purity

Blessed Are the Pure in Heart

The sixth beatitude of the Sermon on the Mount stands between the blessing on the merciful and the blessing on the peacemakers.

God told Moses that no one can see His face and live, yet Matthew 5:8 promises that a clean heart will see Him.

Matthew 5:8 BSB
Blessed are the pure in heart, for they will see God.

Summary

Jesus pronounces God's blessing on people whose hearts are clean. Katharos, the Greek word for pure, means clean, and kardia, the heart, names a person's thoughts and feelings. The blessing therefore reaches the inner life, which God sees when people look at the outward appearance (1 Samuel 16:7). Such cleanness belongs to the motives and desires that no washing of the hands can reach.

  • God makes a heart clean: Peter told the council at Jerusalem that God cleansed the hearts of the Gentiles by faith (Acts 15:9).
  • Chrysostom read purity of heart as chastity, Augustine as a single will, and Clarke and Barnes as cleanness within.
  • The verb of the promise is future, and readers have placed the seeing in this life, at the last day, or in both.

The Sixth Blessing

The verse joins three Greek words, clean, heart and will see, into one promise.

Blessed Are the Pure in Heart reads Matthew 5:8 word by word and beside the texts that share its picture of a clean heart. It belongs to the value of holiness, because Scripture joins a clean heart to the holy place of God and to the pursuit of holiness in Hebrews 12:14.

The question the study answers is what purity of heart is and when the pure will see God. It gives the words of the verse and six texts that tie a clean heart to God's presence. It sets out three readings of what purity is, two of whether a heart can be pure in this life and three of when the seeing comes, each with its holders.

Matthew's adjective, katharos, stands 27 times in 23 verses of the Greek New Testament as the STEP Bible tags it. John uses it of the fine linen given to the bride, "bright and pure" (Revelation 19:8). Jesus uses it of His disciples: "You are already clean because of the word I have spoken to you" (John 15:3).

The heart as a symbol across Scripture, with its Hebrew and Greek words, is taught in its own study.

Read The Heart

Ambrose, as the Catena Aurea gives him, explained why the blessing follows the one on the merciful: "The merciful loses the benefit of his mercy, unless he shows it from a pure heart".

The eight beatitudes as a set, each with the psalm behind it, have their own study, and so does the whole Sermon on the Mount.

Read The Beatitudes

Six Texts on a Pure Heart

Two psalms and four letters of the New Testament share the picture of a clean heart.

Six texts tie a clean heart to God's presence, and two of them promise that the pure will see the Lord.

TextThe Berean wordsThe original wordsWhat it joins to a clean heart
Psalm 24:3 to 4"He who has clean hands and a pure heart"bar levav (H1249, H3824)"Who may stand in His holy place?"
Psalm 51:10"Create in me a clean heart, O God"lev tahor (H3820, H2889)"renew a right spirit within me"
1 Timothy 1:5"the love that comes from a pure heart"katharas kardias (G2513, G2588)"a clear conscience, and a sincere faith"
2 Timothy 2:22"those who call on the Lord out of a pure heart"katharas kardias (G2513, G2588)"pursue righteousness, faith, love, and peace"
Hebrews 12:14"Pursue peace with everyone, as well as holiness"hagiasmos (G38); opsetai (G3700)"without which no one will see the Lord"
1 John 3:2 to 3"purifies himself, just as Christ is pure"hagnizei (G48), hagnos (G53); opsometha (G3700)"we will see Him as He is"
A table of six rows in canon order, each with the Berean words, the Hebrew or Greek words and what the text joins to a clean heart.

What Purity of Heart Is

Three readings stand here, from the fifth century to the nineteenth, each with its objection.

Cleanness within, set against outward washingAdam Clarke; Albert Barnes

Adam Clarke, in his Commentary on the Bible (1832), read the words "In opposition to the Pharisees, who affected outward purity". He wrote that "a purification of the heart, from all vile affections and desires, is essentially requisite in order to enter into the kingdom of God."

Albert Barnes, in his Notes, called the pure in heart those "whose minds, motives, and principles are pure", who "desire to be holy in heart".

The objection: Matthew 5:8 names no Pharisee, so the contrast with outward washing is drawn by the commentators.

Chastity and self-controlJohn Chrysostom

John Chrysostom, in his fifteenth homily on Matthew, named two kinds of the pure, those "not conscious to themselves of any evil" and "those who live in temperance". In his words, "there is nothing which we need so much in order to see God, as this last virtue".

The objection: katharos is the word Paul joins to love and a sincere faith in 1 Timothy 1:5, so its reach is wider than chastity.

A single heart, an undivided willAugustine; Søren Kierkegaard

Augustine, as the Catena Aurea gives him, wrote that "They are foolish who seek to see God with the bodily eye, seeing He is seen only by the heart". He joined the verse to a line of the Book of Wisdom and concluded that "the single heart is the same as is here called the pure heart."

Søren Kierkegaard published a book of discourses in Danish in 1847, and Douglas V. Steere gave its first part the English title Purity of Heart Is To Will One Thing in 1938.

The objection: the STEP Bible lexicon glosses katharos as clean, used literally or figuratively, and the sense of single comes from the line of Wisdom that Augustine set beside the verse.

A Heart Made Clean

Two readings answer whether any heart is pure in this life, and both say that God does the cleansing.

Purity of heart stays partial in this lifeJohn Gill

John Gill, in his Exposition of the New Testament (1746 to 1748), wrote that "The heart of man is naturally unclean; nor is it in the power of man to make it clean". He held that no one in this life is "so pure in heart, as to be entirely free from sin."

The objection: Paul tells Timothy to flee youthful passions and pursue righteousness (2 Timothy 2:22), which treats purity as a pursuit of this life.

A real cleansing now, by the blood of ChristAdam Clarke; Jamieson, Fausset and Brown
But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.
1 John 1:7BSB

Jamieson, Fausset and Brown set this verse beside Matthew 5:8, because it names the cleansing that makes a heart pure.

Clarke wrote, "He whose soul is not delivered from all sin, through the blood of the covenant, can have no Scriptural hope of ever being with God."

The objection: the next verse warns, "If we say we have no sin, we deceive ourselves, and the truth is not in us" (1 John 1:8).

Voices on the Pure Heart

Jerome in the early church and Matthew Henry in 1710 each wrote on Matthew 5:8.

died 420 · Jerome

Jerome speaks to who the pure are.

Read the page on Jerome

“The pure is known by purity of heart, for the temple of God cannot be impure.”

Jerome · Catena Aurea by Aquinas · on Matthew 5:8Patristic

1662 to 1714 · Matthew Henry

Henry speaks to the desire that the promise answers.

Read the page on Matthew Henry

“As he cannot endure to look upon their iniquity, so they cannot endure to look upon his purity; nor shall any unclean thing enter into the new Jerusalem; but all that are pure in heart, all that are truly sanctified, have desires wrought in them, which nothing but the sight of God will sanctify; and divine grace will not leave those desires unsatisfied.”

Matthew Henry · Commentary on the Whole Bible · on Matthew 5:8Puritan

When Will the Pure in Heart See God?

Augustine, Aquinas, Wesley and Barnes are among the holders.

A seeing now, with the eye of the heartAugustine; John Chrysostom

Augustine, in Our Lord's Sermon on the Mount, wrote, "To the pure in heart is given the power of seeing God, as to those bearing about with them a pure eye for discerning eternal things". Chrysostom said of the verse, "He is here speaking of such sight as it is possible for man to have."

The objection: the other promises of the beatitudes, of comfort and of filling, also look to the future (Matthew 5:4 and Matthew 5:6).

The sight of God at the lastAugustine; Thomas Aquinas; John Wesley

In the City of God, book 22, chapter 29, Augustine quotes the verse and asks "whether in the future life God shall also be seen with the bodily eye". Thomas Aquinas, in the Summa Theologiae (part 1, question 12, article 1), reasons from 1 John 3:2 that "it must be absolutely granted that the blessed see the essence of God".

John Wesley, in his Explanatory Notes upon the New Testament (1755), wrote on 1 John 3:2 that believers will see Christ "without a veil".

The objection: the verse promises that the pure will see God and says nothing of His essence, so that word is the reasoning of Aquinas.

Both, the first the beginning of the secondPseudo-Chrysostom; Albert Barnes

A writer the Catena Aurea gives as Chrysostom, and now called Pseudo-Chrysostom, says that the righteous man "sees God in his heart". He adds, "But in that world to come the pure in heart shall see God face to face, not in a glass, and in enigma as here."

Now we see but a dim reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known.
1 Corinthians 13:12BSB

Paul sets a partial seeing now beside a full seeing then, the pattern this reading follows.

Barnes read the sight as favour with God, since all will see Him as Judge: "to see God, means to be his friends and favorites, and to dwell with him in his kingdom."

The objection: Aquinas holds that "it is impossible for the soul of man in this life to see the essence of God" (article 11), so a seeing now is of another kind.

They Will See His Face

Scripture ends with the servants of God in the city where He dwells.

They will see His face, and His name will be on their foreheads.
Revelation 22:4BSB

John's words supply the end toward which the beatitude points.

The fifth and seventh beatitudes each have a study of their own.

Read Blessed Are the Merciful

Where the pursuit of purity turns into rules that people add to God's command is taught in its own study.

Read Holiness and Legalism

Sources

Scripture is the Berean Standard Bible.

  1. STEP Bible, Translators Amalgamated Greek New Testament and Translators Amalgamated Hebrew Old Testament, the tagged texts (Tyndale House, Cambridge), CC BY 4.0.
  2. STEP Bible TBESG lexicon of Extended Strongs for Greek (Tyndale House, Cambridge), CC BY 4.0, based on Abbott-Smith, Manual Greek Lexicon of the New Testament (1922)
  3. Ambrose on Matthew 5:8, in Thomas Aquinas, Catena Aurea, English translation (Oxford, 1841)
  4. Adam Clarke, Commentary on the Bible (1832), on Matthew 5:8.
  5. Albert Barnes, Notes, Explanatory and Practical, on the Old and New Testaments (1832 to 1869), on Matthew 5:8.
  6. John Chrysostom, Homilies on the Gospel of Matthew, Homily 15, on Matthew 5:8 (Nicene and Post-Nicene Fathers, first series, vol. 10)
  7. Augustine on Matthew 5:8, in Thomas Aquinas, Catena Aurea, English translation (Oxford, 1841)
  8. Wikipedia, "Upbuilding Discourses in Various Spirits", on Søren Kierkegaard's discourses of 1847 and Douglas V. Steere's translation of 1938.
  9. John Gill, Exposition of the New Testament (1746 to 1748), on Matthew 5:8.
  10. Jamieson, Fausset and Brown, Commentary Critical and Explanatory on the Whole Bible (1871), on Matthew 5:8.
  11. Jerome on Matthew 5:8, in Thomas Aquinas, Catena Aurea, English translation (Oxford, 1841)
  12. Matthew Henry, Commentary on the Whole Bible (1710), on Matthew 5:8.
  13. Augustine, Our Lord's Sermon on the Mount, book 1, chapter 4, section 12 (Nicene and Post-Nicene Fathers, first series, vol. 6)
  14. Augustine, The City of God, book 22, chapter 29, translated by Marcus Dods (Nicene and Post-Nicene Fathers, first series, vol. 2)
  15. Thomas Aquinas, Summa Theologiae, part 1, question 12, articles 1 and 11, translated by the Fathers of the English Dominican Province, second and revised edition (1920)
  16. John Wesley, Explanatory Notes upon the New Testament (1755), on 1 John 3:2.
  17. Pseudo-Chrysostom on Matthew 5:8, in Thomas Aquinas, Catena Aurea, English translation (Oxford, 1841), quoted at fewer than fifty words.

Every cited work: the sources registry →