2 Kings 10:25
It happened that when he finished offering the burnt offering, Jehu said to the royal guard and to the officers, "Come and kill them; let no man go free!" So {they put them to the sword}, and the royal guard and the officers threw them out, then they went up to the citadel of the temple of Baal.
1 Kings 18:40
Then Elijah said to them, "Seize the prophets of Baal; don't let any man of them escape!" So they seized them, and Elijah brought them down to the wadi of Kishon and killed them there.
Exodus 32:27
And he said to them, "Thus says Yahweh, the God of Israel, 'Put each his sword on his side. Go {back and forth} from gate to gate in the camp, and kill, each his brother and each his friend and each his close relative.'"
Deuteronomy 13:6-11
"If your brother, the son of your mother or your son or your daughter {or your wife whom you embrace} or {your intimate friend} in secrecy {says}, 'Let us go and let us serve other gods!' [gods] that you and your ancestors have not known,
Ezekiel 9:5-7
And to the others he said in my hearing, "Go through the city behind him and kill! Your eyes shall not take pity, and you shall not have compassion.
Ezekiel 22:21-22
And I will gather you, and I will blow on you with the fire of my wrath, and [so] I will melt [you] in the midst of her.
Revelation 16:6-7
because they have poured out the blood of the saints and prophets, and you have given them blood to drink; they are deserving!"