Numbers 35:16

But if a man gives another man a blow with an iron instrument, causing his death, he is a taker of life and is certainly to be put to death.

Leviticus 24:17

And anyone who takes another's life is certainly to be put to death.

Genesis 9:5-6

And for your blood, which is your life, will I take payment; from every beast I will take it, and from every man will I take payment for the blood of his brother-man.

Exodus 21:12-14

He who gives a man a death-blow is himself to be put to death.

Numbers 35:22-24

But if a man has given a wound to another suddenly and not in hate, or without design has sent something against him,

Numbers 35:30-33

Anyone causing the death of another is himself to be put to death on the word of witnesses: but the word of one witness is not enough.

Deuteronomy 19:11-13

But if any man has hate for his neighbour, and waiting for him secretly makes an attack on him and gives him a blow causing his death, and then goes in flight to one of these towns;

Treasury of Scripture Knowledge

Summary

And if he smite him with an instrument of iron, so that he die, he is a murderer: the murderer shall surely be put to death.

Bible References

If he smite

Numbers 35:22
But if a man has given a wound to another suddenly and not in hate, or without design has sent something against him,
Deuteronomy 19:11
But if any man has hate for his neighbour, and waiting for him secretly makes an attack on him and gives him a blow causing his death, and then goes in flight to one of these towns;

The

Numbers 35:30
Anyone causing the death of another is himself to be put to death on the word of witnesses: but the word of one witness is not enough.
Genesis 9:5
And for your blood, which is your life, will I take payment; from every beast I will take it, and from every man will I take payment for the blood of his brother-man.
Exodus 21:12
He who gives a man a death-blow is himself to be put to death.
Leviticus 24:17
And anyone who takes another's life is certainly to be put to death.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain