Charles Ellicott Commentary Deuteronomy 23:7

"Thou shalt not abhor an Edomite; for he is thy brother: thou shalt not abhor an Egyptian, because thou wast a sojourner in his land." — Deuteronomy 23:7 (ASV)

Thou shalt not abhor an Edomite ... an Egyptian. —The contrast between these and the Moabite and Ammonite is drawn rather well by Rashi in this passage. “Learn here,” he says, “that he who makes a man to sin, treats him worse than he who kills him; for he that kills, kills only in this world, but he who causes him to sin, banishes him both from this world and from the world to come.

Edom, therefore, who met them with the sword (Numbers 21:18; Numbers 21:20), they must not abhor; nor, again, Egypt, that would have drowned them (Exodus 1:22); but those who made them to sin are to be abhorred by them, because of the counsel with which they counselled them to cause them to sin.” The counsel of Balaam and the whoredoms of Moab are referred to; the Midianites who joined in this effort had been chastised already (Numbers 31).