1 Samuel 18:20 YLT

¹⁸  And David saith unto Saul, 'Who 'am' I? and what my life -- the family of my father in Israel -- that I am son-in-law to the king?'

¹⁹  And it cometh to pass, at the time of the giving of Merab daughter of Saul to David, that she hath been given to Adriel the Meholathite for a wife.

²⁰  And Michal daughter of Saul loveth David, and they declare to Saul, and the thing is right in his eyes,

²¹  and Saul saith, 'I give her to him, and she is to him for a snare, and the hand of the Philistines is on him;' and Saul saith unto David, 'By the second -- thou dost become my son-in-law to-day.'

²²  And Saul commandeth his servants, 'Speak unto David gently, saying, Lo, the king hath delighted in thee, and all his servants have loved thee, and now, be son-in-law to the king.'