Charles H. Spurgeon on Psalms 144:7

Rid me, and deliver me...from the hand of strange children. We must remember that as the Grecians (conceiting themselves the best bred people in the world) called all other nations "barbarians"; so the people of Israel, the stock of Abraham (being God's peculiar covenant people), called all other nations "aliens" or "strangers"; and because they were hated and maligned by all other nations, therefore they called all professed strangers enemies; so the word is used (Isa 1:7), "Your land strangers shall devour"; that is, enemies shall invade and prevail over you. "Deliver me out of the hand of strange children", or out of the hand of strangers; that is, out of the hand of mine enemies. The Latin word alienus is often put for hostis, and the Roman orator (Cicero) telleth us that "he who is now called a stranger was called an enemy by our ancestors." The reason was because strangers proved unkind to, yea, turned enemies against those that entertained them. —Joseph Caryl.