'Beware' in the Bible

then beware lest you forget Yahweh, who brought you forth out of the land of Egypt, out of the house of bondage.

Beware lest you forget Yahweh your God, in not keeping his commandments, and his ordinances, and his statutes, which I command you this day:

Beware that there not be a base thought in your heart, saying, "The seventh year, the year of release, is at hand;" and your eye be evil against your poor brother, and you give him nothing; and he cry to Yahweh against you, and it be sin to you.