EX 32:27 "Put every man his sword by his side, and go in and out from gate to gate throughout the camp, and slay every man his brother, and every man his companion, and every man his neighbor. --Moses in retribution against unbelievers among his own people.
NU 25:4 (KJV) "And the Lord said unto Moses, take all the heads of the people, and hang them up before the Lord against the sun ...."
"Thus saith the LORD of hosts, I remember that which Amalek did to Israel, how he laid wait for him in the way, when he came up from Egypt. Now go and smite Amalek, and utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass." (I Samuel 15:2-3)
"And that prophet, or that dreamer of dreams, shall be put to death; because he hath spoken to turn you away from the LORD your God..." (Deuteronomy 13: 5)
"If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, which is as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;" (Deuteronomy 13: 6)
"Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him: But thou shalt surely kill him; thine hand shall be first upon him to put him to death, and afterwards the hand of all the people." (Deuteronomy 13:8-9)
"Thou shalt surely smite the inhabitants of that city with the edge of the sword, destroying it utterly, and all that is therein, and the cattle thereof, with the edge of the sword." (Deuteronomy 13:15)