'Cripple' in the Bible

Jonathan, Saul’s son, had a son whose feet were crippled. He was five years old when the news [of the deaths] of Saul and Jonathan came from Jezreel. And the boy’s nurse picked him up and fled; but it happened that while she was hurrying to flee, he fell and became lame. His name was Mephibosheth.

Again Mephibosheth lay himself face down and said, “What is your servant, that you would be concerned for a dead dog like me?”