Ps 21:26

“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 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.”

“Note that he wrote only the word poor to indicate those who despised the enticements of this world with the most lavish contempt; not the rich who are stuffed with the happiness of this world, but the poor, namely, those who hunger for God's kingdom.… The poor praise the Lord, while the rich exalt themselves. The rich collect earthly treasures, while the poor become rich with heavenly abundance. Their resources differ, and each has a completely different mindset. The rich acquire their wealth from this world, but the poor from God.… The poor possess what they could never lose; the rich cling to what not only the dead but even the living frequently lose.”

“Of Thee is my praise: – The speaker is every individual Israelite, or else all Israel as one, inasmuch as they are the subject of the Psalm: my praise, i.e. with which I praise Thee: in the great congregation – of the nations; it (my praise) is of Thee, for Thou hast been to me the occasion of praise because Thou didst deliver me. My vows – which I vowed – will I pay before them that fear Him: – for all the nations will fear Him then, as he says (infra): All the ends of the earth shall remember and turn unto the Lord.”

“"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. Second, he presents such effects as derived through the apostles to others, at "They shall remember." To the apostles pertains the ministry of the Lord's sacrament, which is designated when he says, "The poor shall eat," that is, the humble and those who despise the things of the world: Mt. 5: "Blessed are the poor in spirit, for theirs is the kingdom of heaven." They shall eat the sacrifice, that is, the sacrament of the body and blood, both sacramentally and spiritually. And from this follows a threefold effect: spiritual, namely satiety, praise, and life. Regarding the first he says, "And they shall be satisfied," because their desire will rest in the fullness of graces that are acquired through this sacrament: Ps. 62: "Let my soul be filled as with marrow and fatness." Regarding the second he says, "And they shall praise the Lord who seek him." Nor is this surprising, because praise follows from joy: Is. 51: "They shall come to Zion with praise, and everlasting joy shall be upon their heads." Now the satiety of desire causes delight: Is. 55: "Your soul shall delight in richness," that is, in spiritual fatness: Ps. 41: "With the voice of exultation and confession, the sound of one feasting." But not just anyone praises God, but "those who seek him," that is, who seek nothing else but Christ or God: Is. 55: "Seek God while he may be found; call upon him while he is near." Regarding the third he says, "Their hearts shall live," etc. Jn. 6: "If anyone eats of this bread, he shall live forever." And therefore he says, "shall live"; as if to say: although they may die in body by imitating the passion of the Lord, yet they shall live in heart: Ps. 68: "Seek the Lord, and your soul shall live."”