1 Timothy 5:19

Against an elder receive not an accusation without two or three witnesses.

Matthew 18:16

but if he do not listen, take with thee one or two more; that by the mouth of two or three witnesses every word may be established.

John 8:17

Moreover, it is written in your law, that the witness of two men is true.

John 18:29

Pilate therefore went out to them, and saith, What accusation do ye bring against this man?

Acts 11:30

which also they did, sending it to the elders by the hands of Barnabas and Saul.

Acts 24:2-13

And when he had been called, Tertullus began to accuse him, saying, Seeing that by thee we enjoy much peace, and that improvements are in every way and everywhere taking place in this nation through thy foresight,

Acts 25:16

To whom I answered, It is not the custom of the Romans to give up any man on a charge, before the accused hath the accusers face to face, and hath opportunity to answer for himself concerning the crime laid against him.

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.

Titus 1:6

if any one is without reproach, the husband of one wife, having believing children, that are not accused of dissoluteness, or unruly.

Hebrews 10:28

He that hath set at nought the law of Moses dieth 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 therefore went out to them, and saith, What accusation do ye bring against this man?
Acts 24:2
And when he had been called, Tertullus began to accuse him, saying, Seeing that by thee we enjoy much peace, and that improvements are in every way and everywhere taking place in this nation through thy foresight,
Acts 25:16
To whom I answered, It is not the custom of the Romans to give up any man on a charge, before the accused hath the accusers face to face, and hath opportunity to answer for himself concerning the crime laid against him.
Titus 1:6
if any one is without reproach, the husband of one wife, having believing children, that are not accused of dissoluteness, or unruly.

Two

Matthew 18:16
but if he do not listen, take with thee one or two more; that by the mouth of two or three witnesses every word may be established.
John 8:17
Moreover, it is written in your law, that the witness of two men is true.
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 hath set at nought the law of Moses dieth without mercy under two or three witnesses;