With his people. This translation is justified by St. Paul, Romans 15:10, the particle with being oft understood, as Leviticus 26:42. He calls upon the nations to rejoice and bless God for his favours, and especially for the last wonderful deliverance which shall be given to the Jews when they shall be converted unto the gospel in the last days, which they have all reason to do, not only kern that duty of sympathy which they owe to all people, and especially to God's ancient people, whereby they are to rejoice with them that rejoice, but because of that singular advantage and happiness which all nations will have at that time, and upon that occasion. Or, Rejoice, O ye Gentiles, his people; i.e. O you Gentiles, who once were not God's people, but now are his people, do you rejoice for God's mercies to the Jews his ancient people, bless God for their conversion and salvation.
Related Commentaries of Deuteronomy 32:43
Deuteronomy 32:43
43 Rejoice,i O ye nations, with his people: for he will avenge the blood of his servants, and will render vengeance to his adversaries, and will be merciful unto his land, and to his people.