'Beware' in the Bible

then beware lest thou forget Jehovah who brought thee forth out of the land of Egypt, out of the house of bondage.

Beware that thou forget not Jehovah thy God, in not keeping his commandments, and his ordinances, and his statutes, which I command thee this day;

Beware that there be not a wicked thought in thy heart, saying, The seventh year, the year of release, is at hand; and thine eye be evil against thy poor brother, and thou givest him nought; and he cry against thee to Jehovah, and it be sin in thee.