1 Samuel 17:55

When Saul saw David go forth against the Philistine, he said to Abner, the captain of the army, "Abner, whose son is this youth?" Abner said, "As your soul lives, O king, I can't tell."

1 Samuel 16:21-22

David came to Saul, and stood before him. He loved him greatly; and he became his armor bearer.

1 Samuel 17:58

Saul said to him, "Whose son are you, you young man?" David answered, "I am the son of your servant Jesse the Bethlehemite."

Treasury of Scripture Knowledge

Summary

And when Saul saw David go forth against the Philistine, he said unto Abner, the captain of the host, Abner, whose son is this youth? And Abner said, As thy soul liveth, O king, I cannot tell.

Bible References

Whose son

1 Samuel 17:58
Saul said to him, "Whose son are you, you young man?" David answered, "I am the son of your servant Jesse the Bethlehemite."
1 Samuel 16:21
David came to Saul, and stood before him. He loved him greatly; and he became his armor bearer.