I Samuel 18:18, 23

So David said to Saul, “Who am I, and what is my life or my father’s family in Israel, that I should be son-in-law to the king?”

So Saul’s servants spoke those words in the hearing of David. And David said, “Does it seem to you a light thing to be a king’s son-in-law, seeing I am a poor and lightly esteemed man?”