Jeremiah 17:13

We must therefore not doubt that at the time when he was chosen by Christ and obtained a place in the apostolate, the name of Judas was written in the book of the living, and then he heard as well as the rest the words, "Rejoice not because the devils are subject to you, but rejoice because your names are written in heaven." But because he was corrupted by the plague of covetousness and had his name struck out from that heavenly list, it is appropriately said of him and of people like him by the prophet: "O Lord, let all those who forsake you be confounded. Let them who depart from you be written in the earth, because they have forsaken the Lord, the vein of living waters." And elsewhere, "They shall not be in the counsel of my people, nor shall they be written in the writing of the house of Israel, neither shall they enter into the land of Israel."

And again when all their efforts are exhausted and they have failed to deceive us, they must "be confounded and be ashamed" at the failure of their efforts, "who seek our souls to destroy them. Let them be covered with shame and confusion who desire evil against us." Jeremiah also says, "Let them be confounded, and let not me be confounded; let them be afraid, and let not me be afraid; bring on them the fury of your wrath, and with a double destruction destroy them."

(Verse 12, 13.) The throne of glory on high from the beginning, the place of our sanctification. The expectation of Israel, O Lord, all those who forsake you shall be put to shame, those who turn away shall be written (or described) on the earth; for they have forsaken the Lord, the fountain (or source) of living waters.

"The endurance of Israel." Just as the Savior is righteousness-itself, truth-itself, sanctification-itself, so also he is endurance-itself. And it is not possible either to be righteous apart from Christ, or holy apart from him, or to endure without having Christ. For he himself is the endurance of Israel. And even if you refer it to God, not even so will you be committing impiety. "O Lord, let all who forsake you be put to shame, having departed from you." Each one of us, whenever he sins, through the things by which he sins forsakes Christ, and having forsaken Christ he forsakes God. For in doing wrong he forsakes righteousness, and in becoming profane he forsakes sanctification, and in making war he forsakes peace, and in coming to be under the enemy he forsakes redemption, and in being outside the wisdom of God he forsakes wisdom. To all, then, who forsake God the prophet utters an imprecation, teaching us what will befall them, saying, "Let all who forsake you be put to shame." As far as they have departed, let them be put to shame just so far. "Let them be written upon the earth." All human beings are written: the saints in heaven, but the sinners upon the earth. It is said to the disciples by Jesus, "Rejoice that your names are written in the heavens." Therefore one ought to rejoice, if he becomes such a person that his name is inscribed in the heavens. And just as the name of the saints is inscribed in the heavens, so the names of those who conduct their lives in an earthly manner — those who do not pass by the land of Edom but hold the fields of the land of Edom and the vineyards — are written, as of those who forsake God, upon the earth. For it says, "Let them be put to shame, having departed; let them be written upon the earth." For indeed, "with what measure you measure, it shall be measured to you." Each is the cause to himself of his being written. […]

Note, God is to all that are his a fountain of living waters. There is a fulness of comfort in him, an over-flowing ever-flowing fulness, like that of a fountain; it is always fresh, and clear, and clean, like spring water, while the pleasures of sin are puddle-waters.