Verses with the word marry in the Old Testament (4 verses):

Genesis 38:8
And Judah said unto Onan, Go in unto thy brother's wife, and marry her, and raise up seed to thy brother.

Numbers 36:6
This is the thing which the LORD doth command concerning the daughters of Zelophehad, saying, Let them marry to whom they think best; only to the family of the tribe of their father shall they marry.

Deuteronomy 25:5
If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of an husband's brother unto her.

Isaiah 62:5
For as a young man marrieth a virgin, so shall thy sons marry thee: and as the bridegroom rejoiceth over the bride, so shall thy God rejoice over thee.