Verses with the word slayeth in the Old Testament (4 verses):

Genesis 4:15
And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.

Deuteronomy 22:26
But unto the damsel thou shalt do nothing; there is in the damsel no sin worthy of death: for as when a man riseth against his neighbour, and slayeth him, even so is this matter:

Job 5:2
For wrath killeth the foolish man, and envy slayeth the silly one.

Ezekiel 28:9
Wilt thou yet say before him that slayeth thee, I am God? but thou shalt be a man, and no God, in the hand of him that slayeth thee.