Genesis 4:23And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt.
Exodus 4:23And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, even thy firstborn.
Leviticus 4:23Or if his sin, wherein he hath sinned, come to his knowledge; he shall bring his offering, a kid of the goats, a male without blemish: Leviticus 4:24And he shall lay his hand upon the head of the goat, and kill it in the place where they kill the burnt offering before the LORD: it is a sin offering.
The 4th verse of the 23rd Psalm:
Psalms 23:4Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.