"The LORD is the portion of my inheritance!" Psalm 16:5
The redeemed have all their good in God. God Himself is the great good which they are brought to the possession and enjoyment of by redemption. He is the highest good, and the sum of all that good which Christ purchased. God Himself is the inheritance of the saints; He is the portion of their souls. God Himself is their wealth and treasure, their food, their life, their dwelling place, their ornament and diadem, and their everlasting honor and glory! "Whom have I in heaven but You? I have no delight or desire on earth besides You!" Psalm 73:25
The glorious excellencies and beauty of God will be what will forever entertain the minds of the saints. The love of God will be their everlasting feast. The redeemed will indeed enjoy other things; they will enjoy the angels, and will enjoy one another. But that which they shall enjoy in the angels, or each other, or in anything else whatsoever, which will yield them delight and happiness — will be what will be seen of God in them!
"You are my portion, O LORD!" Psalm 119:57