4 Saul's son Jonathan had a son who was crippled in his feet. He was five years old when the news about Saul and Jonathan came from Jezreel. His nurse picked him up and fled; and, in her haste to flee, it happened that he fell and became lame. His name was Mephibosheth.
Matthew Henry's Commentary on 2 Samuel 4:4
Commentary on 2 Samuel 4:1-7
(Read 2 Samuel 4:1-7)
See how Ishbosheth was murdered! When those difficulties dispirit us, which should sharpen our endeavours, we betray both our heavenly crowns and our earthly lives. Love not sleep, lest thou come to poverty and ruin. The idle soul is an easy prey to the destroyer. We know not when and where death will meet us. When we lie down to sleep, we are not sure that we may not sleep the sleep of death before we awake; nor do we know from what hand the death-blow may come.