2 Samuel 9:3

9:3 The king asked, “Is there not someone left from Saul’s family, that I may extend God’s kindness to him?” Ziba said to the king, “One of Jonathan’s sons is left; both of his feet are crippled.”

2 Samuel 9:6

9:6 When Mephibosheth son of Jonathan, the son of Saul, came to David, he bowed low with his face toward the ground. David said, “Mephibosheth?” He replied, “Yes, at your service.”