This is a repetition of what Moses just said in the previous portion. Moses wants the people of Israel to focus on their history as a nation. (See: [[rc://en/ta/man/translate/figs-parallelism]])
"he will make it clear to you" or "he will enable you to understand it"
# gave the nations their inheritance
This is an idiom. "put the nations in the places where they would live." Similar words, "giving to you as an inheritance," appear in [Deuteronomy 4:21](../04/21.md). (See: [[rc://en/ta/man/translate/figs-idiom]])
# he set the boundaries of the peoples, as he also fixed the number of their gods