Chileab was a son worthy of his mother Abigail. The meaning of his name is "like the father," which had been given him because of his striking resemblance to David in appearance, a circumstance that silenced the talk against David's all too hasty marriage with the widow of Nabal. Intellectually, too, Chileab testified to David's paternity. In fact, he excelled his father in learning, as he did even the teacher of David, Mephibosheth, the son of Jonathan. On account of his piety he is one of the few who have entered Paradise alive.
Chileab Beyond the Firmament
Legends of the Jews 4:89