'Marriage' in the Bible

The men of Israel said, "Have you seen this man who is coming up? He does so to defy Israel. But the king will make the man who can strike him down very wealthy! He will give him his daughter in marriage, and he will make his father's house exempt from tax obligations in Israel."

Then Saul said to David, "Here's my oldest daughter, Merab. I want to give her to you in marriage. Only be a brave warrior for me and fight the battles of the Lord." For Saul thought, "There's no need for me to raise my hand against him. Let it be the hand of the Philistines!"

When the time came for Merab, Saul's daughter, to be given to David, she instead was given in marriage to Adriel, who was from Meholah.

when David, along with his men, went out and struck down two hundred Philistine men. David brought their foreskins and presented all of them to the king so he could become the king's son-in-law. Saul then gave him his daughter Michal in marriage.