Verses with the word beware in the Old Testament (12 verses):

Genesis 24:6
And Abraham said unto him, Beware thou that thou bring not my son thither again.

Exodus 23:21
Beware of him, and obey his voice, provoke him not; for he will not pardon your transgressions: for my name is in him.

Deuteronomy 6:12
Then beware lest thou forget the LORD, which brought thee forth out of the land of Egypt, from the house of bondage.

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:

Deuteronomy 15:9
Beware that there be not a thought in thy wicked 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 unto the LORD against thee, and it be sin unto thee.

Judges 13:4
Now therefore beware, I pray thee, and drink not wine nor strong drink, and eat not any unclean thing:

Judges 13:13
And the angel of the LORD said unto Manoah, Of all that I said unto the woman let her beware.

2 Samuel 18:12
And the man said unto Joab, Though I should receive a thousand shekels of silver in mine hand, yet would I not put forth mine hand against the king's son: for in our hearing the king charged thee and Abishai and Ittai, saying, Beware that none touch the young man Absalom.

2 Kings 6:9
And the man of God sent unto the king of Israel, saying, Beware that thou pass not such a place; for thither the Syrians are come down.

Job 36:18
Because there is wrath, beware lest he take thee away with his stroke: then a great ransom cannot deliver thee.

Proverbs 19:25
Smite a scorner, and the simple will beware: and reprove one that hath understanding, and he will understand knowledge.

Isaiah 36:18
Beware lest Hezekiah persuade you, saying, the LORD will deliver us. Hath any of the gods of the nations delivered his land out of the hand of the king of Assyria?