Be observant and cautious, lest at sometime you may forget the Lord your God, and neglect his commandments, as well as the judgments and ceremonies, which I instruct to you this day
Other versions
King James Version
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:English Standard Version
"Take care lest you forget the LORD your God by not keeping his commandments and his rules and his statutes, which I command you today,New International Version
Be careful that you do not forget the LORD your God, failing to observe his commands, his laws and his decrees that I am giving you this day.