Deuteronomy 8:11
"Beware that thou forget not the LORD thy God, in not keeping his commandments, and his judgments, and his statutes, which I command thee this day:"
Cross References (ranked by relevance)
Psalm 106:21
12
They forgat God their saviour, which had done great things in Egypt;
Proverbs 1:32
For the turning away of the simple shall slay them, and the prosperity of fools shall destroy them.
Proverbs 30:9
Lest I be full, and deny thee, and say, Who is the LORD? or lest I be poor, and steal, and take the name of my God in vain.