1 Samuel 8:1-5

When Samuel became old, he made his sons judges over Israel. The name of his firstborn son was Joel, and the name of his second, Abijah; they were judges in Beersheba. Yet his sons did not walk in his ways but turned aside after gain. They took bribes and perverted justice. Then all the elders of Israel gathered together and came to Samuel at Ramah and said to him, “Behold, you are old and your sons do not walk in your ways. Now appoint for us a king to judge us like all the nations.”