2 Kings 17:38

And the covenant that I have made with you, see ye forget not, and that you fear none other gods:

Deuteronomy 4:23

Take heed unto yourselves therefore, that ye forget not the covenant of the LORD your God which he made with you, and that ye make you no graven image of whatsoever it be that the LORD thy God hath forbidden thee.

Deuteronomy 6:12

Then beware, lest thou forget the LORD which brought thee out of the land of Egypt, the house of bondage.

Deuteronomy 8:14-18

and all that thou hast increased, then beware lest thine heart rise and thou forget the LORD thy God which brought thee out of the land of Egypt the house of bondage,

Treasury of Scripture Knowledge

Summary

And the covenant that I have made with you ye shall not forget; neither shall ye fear other gods.

Bible References

Ye shall not forget

Deuteronomy 4:23
Take heed unto yourselves therefore, that ye forget not the covenant of the LORD your God which he made with you, and that ye make you no graven image of whatsoever it be that the LORD thy God hath forbidden thee.
Deuteronomy 6:12
Then beware, lest thou forget the LORD which brought thee out of the land of Egypt, the house of bondage.
Deuteronomy 8:14
and all that thou hast increased, then beware lest thine heart rise and thou forget the LORD thy God which brought thee out of the land of Egypt the house of bondage,