1 Thessalonians 3:13

"To the end He may establish your hearts unblamable in holiness before our God and Father, at the coming of our Lord Jesus Christ with all His saints." He shows that love produces advantage to themselves, not to those who are loved. I wish, he says, that this love may abound, that there may be no blemish. He does not say to stablish you, but your hearts. "For out of the heart come forth evil thoughts." (Matt. xv. 19) For it is possible, without doing anything, to be a bad man; as for example, to have envy, unbelief, deceit, to rejoice at evils, not to be loving, to hold perverted doctrines, all these things are of the heart; and to be pure of these things is holiness. For indeed chastity is properly by preeminence called holiness, since fornication and adultery is also uncleanness. But universally all sin is uncleanness, and every virtue is purity. For, "Blessed," it is said, "are the pure in heart." (Matt. v. 8) By "the pure" He means those who are in every way pure. For other things also know how to pollute the soul, and no less. For that wickedness defiles the soul, hear the prophet, saying, "O Jerusalem, wash thine heart from wickedness." (Jer. iv. 14) And again, "Wash you, make you clean, put away the wickednesses from your souls." (Isa. i. 16, Sept) He did not say "fornications," so that not only fornication, but other things also defile the soul. "To establish your hearts," he says, "unblamable in holiness before our God and Father, at the coming of our Lord Jesus Christ with all His saints." Therefore Christ will then be a Judge, but not before Him (only), but also before the Father we shall stand to be judged. Or does he mean this, to be unblamable before God, as he always says, "in the sight of God," for this is sincere virtue-not in the sight of men? It is love then that makes them unblamable. For it does make men really unblamable.

The Apostle shows that love benefits those who love, not those who are loved. "May the Lord fill you," he says, "with love, so as to establish your hearts." By "the Lord" understand the Spirit, as Basil the Great also interpreted this. For who else …

But for what purpose does Paul pray? So that he may establish your hearts unblamable in holiness, that is, that nobody can complain about you; "...righteous before God, walking in all the commandments and ordinances of the Lord blameless" (Lk. 1:6). In holiness before our …

Note, The more we grow and abound in grace, and particularly in the grace of love, the more we are established and confirmed in it. Note also, Holiness is required of all those who would go to heaven, and therein we must be unblamable; that is, we must act in every thing so that we may not in the least contradict the profession we make of holiness.

To the end he may stablish your hearts,.... Which are very unstable and inconstant in their frames, and in the exercise of grace, and have need to be established in the love of God, against the fears of men, the frowns of the world, the temptations of Satan, and in, and with the doctrines of grace; See Gill on 1Th 3:2, unblamable in holiness before God, even our Father.