he slew

1 Kings 15:29
As soon as Baasha became king, he struck down the entire household of Jeroboam. He did not leave Jeroboam anyone that breathed, but destroyed them all according to the word the LORD had spoken through His servant Ahijah the Shilonite,

Judges 1:7
Then Adoni-bezek said, "Seventy kings with their thumbs and big toes cut off have gathered the scraps under my table. As I have done, so God has repaid me." And they brought him to Jerusalem, where he died.

he left him

1 Kings 14:10
Because of all this, behold, I am bringing disaster on the house of Jeroboam: I will cut off from Jeroboam every male, both slave and free in Israel; I will sweep away the house of Jeroboam as one sweeps away dung until it is gone!

1 Samuel 25:22, 34
May God punish David, and ever so severely, if I let one of his men survive until morning." . . .