Romans 15:10

10Exult, ye Gentiles, with his people This verse is commonly considered as if it was taken from the song of Moses; but with this I cannot agree; for Moses’ design there was to terrify the adversaries of Israel by setting forth his greatness, rather than to invite them to a common joy. I hence think that this is quoted from Psalms 47:5, where it is written, “Exult and rejoice let the Gentiles, because thou judgest the nations in equity, and the Gentiles on the earth thou guidest.” And Paul adds, with his people, and he did this by way of explanation; for the Prophet in that psalm no doubt connects the Gentiles with Israel, and invites both alike to rejoice; and there is no joy without the knowledge of God. (447)