The Pulpit Commentary - Psalms 68:31
Princes shall come out of Egypt. Then shall princely ambassadors come to Zion out of Egypt, and make submission (comp. Isaiah 43:3 ; Isaiah 45:14 ). Ethiopia shall soon stretch out her hands unto God . The Ptolemies, in their wars with Syria, often sought the favour of the Jews. Christian Churches at an early date were established both in Egypt and in Abyssinia, and some of the most promising mission fields today are in Africa. read more
The Pulpit Commentary - Psalms 68:30
Rebuke the company of spear men; rather, the wild beast of the reeds ; i . e . the crocodile or the hippopotamus, either of which may well symbolize the empire of Egypt, the mightiest of the heathen powers in David's time. The multitude of the bulls represents other heathen powers, Assyria perhaps especially, which had the human-headed and winged bull for its principal emblem. With the calves of the people; rather, of peoples— an obscure phrase, perhaps meaning inferior powers.... read more