'Son in law' in the Bible

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?'

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.'

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.'

And the servants of Saul speak in the ears of David these words, and David saith, 'Is it a light thing in your eyes to be son-in-law to the king -- and I a poor man, and lightly esteemed?'

And his servants declare to David these words, and the thing is right in the eyes of David, to be son-in-law to the king; and the days have not been full,

and David riseth and goeth, he and his men, and smiteth among the Philistines two hundred men, and David bringeth in their foreskins, and they set them before the king, to be son-in-law to the king; and Saul giveth to him Michal his daughter for a wife.

And Ahimelech answereth the king and saith, 'And who among all thy servants is as David -- faithful, and son-in-law of the king, and hath turned aside unto thy council, and is honoured in thy house?