I will make mention of Rahab; i.e. of Egypt. The context requires this meaning, which is found also in Psalms 89:10 and in Isaiah 51:9. Literally "Rahab" means "pride, arrogance." And Babylon. The fitting counterpart of Egypt, equally antagonistic to Israel, and equally lifted up with pride and presumption.
To them that know me; rather, among them that know me; i.e. as belonging to them, included in their number (comp. Isaiah 19:21, "And the Lord shall be known to the Egyptians, and the Egyptians shall know the Lord in that day;" and see also Psalms 72:11, Psalms 72:17; Psalms 82:8; Isaiah 66:23).
Behold Philistia, and Tyre, with Ethiopia. Other hostile nations (comp. Psalms 83:7; 2 Chronicles 12:3; 2 Chronicles 14:9-13). This man was horn there. There is no "man" in the original, and it is better to understand "nation;" this, that, and the other nation—all those mentioned, and others—are grafted into Zion, and have a second birth there.