What was the God of Israel teaching Israel by example concerning the Gentile?

Among strangers. Being a people separated unto God, Israel was confronted with the question of how to behave towards the stranger. The Lord who separated the Israelites from the Gentiles instructed Israel in this very matter. Deuteronomy 10:17-19 states, For the Lord your God is God of gods, and Lord of lords, a great God, mighty and awesome, who does not show favoritism, nor take bribes. He does justice for the fatherless and widow, and loves the stranger, in giving him food and raiment. You shall therefore love the stranger: for you were strangers in the land of Egypt.