Deuteronomy 4:21
Furthermore the Lord was angry with me for your sakes, and sware that I should not go over Jordan, and that I should not go in unto that good land, which the Lord thy God giveth thee for an inheritance:
Cross-reference
Deuteronomy 1:37 records the same incident of Moses being barred from the Promised Land because of Israel's rebellion.
In Deuteronomy 3:26, God refuses to hear Moses' plea, providing the immediate aftermath of the anger mentioned here.
Deuteronomy 31:2 adds Moses' age and his own acknowledgment of the prohibition, linking it to his inability to lead further.
Deuteronomy 3:25 records Moses' earnest prayer to cross — the very request that was denied, adding his personal desire.
Numbers 20:12 reveals the cause: Moses' lack of faith at Meribah, showing why God was angry and forbade him entry.
Psalm 106:32 poetically blames the people for provoking God at Meribah, echoing that Moses suffered for their sakes.
Psalm 106:33 adds that Moses spoke rashly, giving a specific reason for his sin that led to the prohibition.