The LORD is the portion of my inheritance and of my cup: you maintain my lot.
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Augustine of Hippo
AD 430
5. "The Lord is the portion of Mine inheritance, and of My cup" (ver. 5). For together with Me they shall possess the inheritance, the Lord Himself. Let others choose for themselves portions, earthly and temporal, to enjoy: the portion of the Saints is the Lord eternal. Let others drink of deadly pleasures, the portion of My cup is the Lord. In that I say, "Mine," I include the Church: for where the Head is, there is the body also. For into the inheritance will I gather together their assemblies, and by the inebriation of the cup I will forget their old names. "Thou art He who will restore to Me My inheritance:" that to these too, whom I free, may be known "the glory wherein I was with Thee before the world was made." For Thou wilt not restore to Me that which I never lost, but Thou wilt restore to these, who have lost it, the knowledge of that glory: in whom because I am, Thou wilt restore to Me.
Cup. Eternal happiness consists in seeing (Worthington) and enjoying God, (Haydock) and is promised to the patient. Though Christ was truly king of Israel and exercised jurisdiction, (John xii., and xviii. 37., and Matthew xxi.; Worthington) yet it was not of a temporal nature; (Haydock) and his chief inheritance was the Lord, who would reward his merits. He has taught all clergymen to make this happy choice; as they declare when they become such. Man may call God his inheritance, as he was made for him; and though he may have fallen, if he rise again, his title will be restored, and he may obtain felicity, whether he live in the world or retire from it. (Worthington)
David alludes to the custom of allotting each his portion of wine and meat, which was greater in proportion to the person's dignity. He rejects with disdain all worldly and sensual joys. (Calmet)
God in not "a part "but the whole portion of a good man.
It is St. Jerome, "Thou are the possessor of my lot. "I trust in th...