Numbers 32:7

And wherefore discourage ye the heart of the children of Israel from going over into the land which the Lord hath given them?

Cross-reference

Numbers 32:9 describes the spies' discouragement of Israel — the exact historical precedent Moses warns Reuben and Gad not to repeat.

Deuteronomy 1:28 shows how the spies' report melted the people's hearts — the very outcome Moses fears from the tribes' request.

Acts 21:13 shows Paul's unwavering commitment despite warnings — a stark contrast to the discouragement Moses rebukes.