John 8:17

It is also written in your law, that the testimony of two men is true.

Deuteronomy 17:6

At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.

Matthew 18:16

But if he will not hear you, then take with you one or two more, that in the mouth of two or three witnesses every word may be established.

Deuteronomy 19:15

One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sins: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.

1 Kings 21:10

And set two men, sons of Belial, before him, to bear witness against him, saying, You did blaspheme God and the king. And then carry him out, and stone him, that he may die.

John 10:34

Jesus answered them, Is it not written in your law, I said, You are gods?

John 15:25

But this comes to pass, that the word might be fulfilled that is written in their law, They hated me without a cause.

2 Corinthians 13:1

This is the third time I am coming to you. In the mouth of two or three witnesses shall every word be established.

Galatians 3:24

Therefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.

Galatians 4:21

Tell me, you that desire to be under the law, do you not hear the law?

Hebrews 10:28

He that despised Moses' law died without mercy under two or three witnesses:

1 John 5:9

If we receive the witness of men, the witness of God is greater: for this is the witness of God which he has testified of his Son.

Revelation 11:3

And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and three score days, clothed in sackcloth.

Treasury of Scripture Knowledge

Bible References

Also

John 10:34
Jesus answered them, Is it not written in your law, I said, You are gods?
John 15:25
But this comes to pass, that the word might be fulfilled that is written in their law, They hated me without a cause.
Galatians 3:24
Therefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
Galatians 4:21
Tell me, you that desire to be under the law, do you not hear the law?

That

Deuteronomy 17:6
At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.
Deuteronomy 19:15
One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sins: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
1 Kings 21:10
And set two men, sons of Belial, before him, to bear witness against him, saying, You did blaspheme God and the king. And then carry him out, and stone him, that he may die.
Matthew 18:16
But if he will not hear you, then take with you one or two more, that in the mouth of two or three witnesses every word may be established.
2 Corinthians 13:1
This is the third time I am coming to you. In the mouth of two or three witnesses shall every word be established.
Hebrews 10:28
He that despised Moses' law died without mercy under two or three witnesses:
1 John 5:9
If we receive the witness of men, the witness of God is greater: for this is the witness of God which he has testified of his Son.
Revelation 11:3
And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and three score days, clothed in sackcloth.

General references

Numbers 35:30
Whoever kills any person, the murderer shall be put to death by the mouth of witnesses: but one witness shall not testify against any person to cause him to die.
Deuteronomy 17:6
At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.