Ps 79:17

“This grace He placed "in Him in whom we have obtained a lot, being predestinated according to the purpose of Him who worketh all things." And thus as He worketh that we come to Him, so He worketh that we do not depart. Wherefore it was said to Him by the mouth of the prophet, "Let Thy hand be upon the man of Thy right hand, and upon the Son of man whom Thou madest strong for Thyself, and we will not depart from Thee." This certainly is not the first Adam, in whom we departed from Him, but the second Adam, upon whom His hand is placed, so that we do not depart from Him. For Christ altogether with His members is-for the Church's sake, which is His body-the fulness of Him. When, therefore, God's hand is upon Him, that we depart not from God, assuredly God's work reaches to us (for this is God's hand); by which work of God we are caused to be abiding in Christ with God-not, as in Adam, departing from God. For "in Christ we have obtained a lot, being predestinated according to His purpose who worketh all things." This, therefore, is God's hand, not ours, that we depart not from God. That, I say, is His hand who said, "I will put my fear in their hearts, that they depart not from me."”

“"Let Your hand be upon the Man of Your right hand, and upon the Son of Man whom You have strengthened Yourself" [Psalm 80:17]. "And we depart not from You....You will quicken us, and Your Name we will invoke" [Psalm 80:18]. You shall be sweet to us, "You will quicken us." For aforetime we did love earth, not You: but You have mortified our members which are upon the earth. [Colossians 3:5] For the Old Testament, having earthly promises, seems to exhort that God should not be loved for nought, but that He should be loved because He gives something on earth. What do you love, so as not to love God? Tell me. Love, if you can, anything which He has not made. Look round upon the whole creation, see whether in any place you are held with the birdlime of desire, and hindered from loving the Creator, except it be by that very thing which He has Himself created, whom you despise. But why do you love those things, except because they are beautiful? Can they be as beautiful as He by whom they were made? You admire these things, because you see not Him: but through those things which you admire, love Him whom you see not. Examine the creation; if of itself it is, stay therein: but if it is of Him, for no other reason is it prejudicial to a lover, than because it is preferred to the Creator. Why have I said this? With reference to this verse, brethren. Dead, I say, were they that did worship God that it might be well with them after the flesh: "For to be wise after the flesh is death:" [Romans 8:6] and dead are they that do not worship God gratis, that is, because of Himself He is good, not because He gives such and such good things, which He gives even to men not good. Money will you have of God? Even a robber has it. Wife, abundance of children, soundness of body, the world's dignity, observe how many evil men have. Is this all for the sake of which thou dost worship Him? Your feet will totter, you will suppose yourself to worship without cause, when you see those things to be with them who do not worship Him. All these things, I say, He gives even to evil men, Himself alone He reserves for good men. "You will quicken us;" for dead we were, when to earthly things we did cleave; dead we were, when of the earthly man we did bear the image. "You will quicken us;" You will renew us, the life of the inward man You will give us. "And Your Name we will invoke;" that is, You we will love. You to us will be the sweet forgiver of our sins, You will be the entire reward of the justified. "O Lord God of virtues, convert us, and show Your face, and we shall be whole" [Psalm 80:20].”