He mentions Egypt and Ethiopia, two countries out of which subjects and suppliants were least to be expected (v. 31): Princes shall come out of Egypt as ambassadors to seek God's favour and submit to him; and they shall be accepted, for the Lord of hosts shall thereupon bless them, saying, Blessed be Egypt my people, Isa. xix. 25. Even Ethiopia, that had stretched out her hands against God's Israel (2 Chron. xiv. 9), should now stretch out her hands unto God, in prayer, in presents, and to take hold on him, and that soon. Agree with thy adversary quickly. Out of all nations some shall be gathered in to Christ and be owned by him.