John Chrysostom

"And hearing this the Gentiles" - this, while it was more cheering to them, seeing the case was this, that whereas those were of right to hear first, they themselves enjoy the blessing, was at the same time more stinging to those - "and the Gentiles," it says, "hearing this were glad, and glorified the word of the Lord: and believed, as many as were ordained unto eternal life": i.e., set apart for God. Observe how he shows the speediness of the benefit.

Homily on Acts 30 ↗

Theophylact of Ohrid

"Who were ordained to eternal life." Ordained not by compulsion, for it is said, "whom He foreknew, He also predestined" (Rom. 8:29). Thus, the kindred of the Lord is essentially the entire human race, but Israel is His especially close kindred. And since He came to Israel, and enlightened the other nations through the apostles, it is said: "God according to His promise raised up for Israel a Savior, Jesus" (Acts 13:23), while the Gentiles through Him were illumined with light (cf. …

Commentary on Acts ↗

Ignatius of Antioch

It is absurd to speak of Jesus Christ with the tongue, and to cherish in the mind a Judaism which has now come to an end. For where there is Christianity there cannot be Judaism. For Christ is one, in whom every nation that believes, and every tongue that confesses, is gathered unto God. And those that were of a stony heart have become the children of Abraham, the friend of God; and in his seed all those have been blessed who were ordained to eternal life in Christ.

Epistle of Ignatius to the Magnesians ↗