Thomas Aquinas, on Rom 10:20

“But Isaias is bold, and saith: I was found by them that did not seek me: I appeared openly to them that asked not after me.”

“Second, he shows that they knew through the teaching of the prophets, and first he quotes Isaiah as foretelling the conversion of the gentiles, saying, but Isaiah is bold and says, i.e., Isaiah boldly declares the truth, although this would put him in danger of death: he goes forth boldly to meet armed men (Job 39:21). And says: I was found by those who did not seek me; I appeared openly to those who did not ask for me; here our text has: they have sought me who before asked not for me, they have found me who sought me not (Isa 65:1). He mentions first the conversion of the gentiles, saying, I was found by those who did not seek me. This shows that the conversion of the gentiles was beyond their merits and intention: Christ became a servant in order that the gentiles might glorify God for his mercy (Rom 15:9). About this finding Matthew says: the kingdom of heaven is like a treasure in a field, which a man found (Matt 13:44). Second, he shows the cause and manner of their conversion. The cause, indeed, because it was not by chance that they found what they were not seeking but by the grace of him who willed to appear to them. This is indicated, when he says: I appeared; the grace of God has appeared for the salvation of all men (Titus 2:11). The manner was that Christ did not appear to the gentiles in the enigmas and figures of the law but in plain truth; hence he says: I appeared openly. Behold, now you speak plainly and do not speak a proverb (John 16:29). I appeared openly to those, i.e., the gentiles, who did not ask after me, i.e., who did not ask for my doctrine: they keep on praying to a god that cannot save (Isa 45:20).”

Imported from an open dataset — not yet checked against the printed edition.