Clement of Alexandria

To inquire, respecting God, if it tends not to strife but to discovery, is salutary. For it is written in David, "The poor eat and shall be filled; and they shall praise the Lord that seek him. Your heart shall live forever." For they who seek him after the true search, praising the Lord, shall be filled with the gift that comes from God, that is, knowledge. And their soul shall live; for the soul is figuratively termed the heart, which ministers life: for by the Son is the Father known.

The Stromata Book 5 ↗

Augustine of Hippo

"The poor shall eat, and be filled" [Psalm 22:26]. The humble and the despisers of the world shall eat, and imitate Me. For so they will neither desire this world's abundance, nor fear its want. "And they shall praise the Lord, who seek Him." For the praise of the Lord is the pouring out of that fullness. "Their hearts shall live for ever and ever." For that food is the food of the heart.

Exposition on Psalm 22 ↗

Thomas Aquinas

"The poor shall eat." Here next he sets forth the effect of the passion with respect to others; and first he proposes the various effects of the passion; second, he shows that they pertain to the future, at "It shall be proclaimed." Regarding the first, he does two things. First, he proposes the effects pertaining to the apostles. …

Exposition on the Psalms of David ↗