1 Timothy 5:19

Against an elder receive not an accusation, but before two or three witnesses.

Deuteronomy 19:15

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

Matthew 18:16

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

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 19:18-19

And the judges shall make diligent inquisition: and behold, if the witness is a false witness, and hath testified falsely against his brother;

John 8:17

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

John 18:29

Pilate then went out to them, and said, What accusation bring ye against this man?

Acts 11:30

Which also they did, and sent it to the elders by the hands of Barnabas and Saul.

Acts 24:2-13

And when he was called forth, Tertullus began to accuse him, saying, Seeing that by thee we enjoy great quietness, and that very worthy deeds are done to this nation by thy providence,

Acts 25:16

To whom I answered, It is not the manner of the Romans to deliver any man to die, before he who is accused hath the accusers face to face, and hath license to answer for himself concerning the crime laid against him.

2 Corinthians 13:1

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

Titus 1:6

If any is blameless, the husband of one wife, having faithful children, not accused of riot, or disorderly.

Hebrews 10:28

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

Treasury of Scripture Knowledge

Summary

Against an elder receive not an accusation, but before two or three witnesses.

Bible References

Receive

John 18:29
Pilate then went out to them, and said, What accusation bring ye against this man?
Acts 24:2
And when he was called forth, Tertullus began to accuse him, saying, Seeing that by thee we enjoy great quietness, and that very worthy deeds are done to this nation by thy providence,
Acts 25:16
To whom I answered, It is not the manner of the Romans to deliver any man to die, before he who is accused hath the accusers face to face, and hath license to answer for himself concerning the crime laid against him.
Titus 1:6
If any is blameless, the husband of one wife, having faithful children, not accused of riot, or disorderly.

Two

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 sinneth; at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
Matthew 18:16
But if he will not hear thee, then take with thee one or two more, that in the mouth of two or three witnesses every word may be established.
John 8:17
It is also written in your law, that the testimony of two men is true.
2 Corinthians 13:1
This is the third time I am coming to you: By 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:

General references

Genesis 9:23
And Shem and Japheth took a garment, and laid it upon both their shoulders, and went backward, and covered the nakedness of their father: and their faces were backward, and they saw not their father's nakedness.
Numbers 35:30
Whoever killeth 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 13:14
Then shalt thou inquire, and make search, and ask diligently; and behold, if it is truth, and the thing certain, that such abomination is wrought among you;
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.