1 Timothy 5:19

Against an elder an accusation receive not, except upon two or three witnesses.

Deuteronomy 19:15

'One witness doth not rise against a man for any iniquity, and for any sin, in any sin which he sinneth; by the mouth of two witnesses, or by the mouth of three witnesses, is a thing established.

Matthew 18:16

and if he may not hear, take with thee yet one or two, that by the mouth of two witnesses or three every word may stand.

Deuteronomy 17:6

By the mouth of two witnesses or of three witnesses is he who is dead put to death; he is not put to death by the mouth of one witness;

Deuteronomy 19:18-19

and the judges have searched diligently, and lo, the witness is a false witness, a falsehood he hath testified against his brother:

John 8:17

and also in your law it hath been written, that the testimony of two men are true;

John 18:29

Pilate, therefore, went forth unto them, and said, 'What accusation do ye bring against this man?'

Acts 11:30

which also they did, having sent unto the elders by the hand of Barnabas and Saul.

Acts 24:2-13

and he having been called, Tertullus began to accuse him, saying, 'Much peace enjoying through thee, and worthy deeds being done to this nation through thy forethought,

Acts 25:16

unto whom I answered, that it is not a custom of Romans to make a favour of any man to die, before that he who is accused may have the accusers face to face, and may receive place of defence in regard to the charge laid against him.

2 Corinthians 13:1

This third time do I come unto you; on the mouth of two witnesses or three shall every saying be established;

Titus 1:6

if any one is blameless, of one wife a husband, having children stedfast, not under accusation of riotous living or insubordinate --

Hebrews 10:28

any one who did set at nought a law of Moses, apart from mercies, by two or three witnesses, doth die,

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 forth unto them, and said, 'What accusation do ye bring against this man?'
Acts 24:2
and he having been called, Tertullus began to accuse him, saying, 'Much peace enjoying through thee, and worthy deeds being done to this nation through thy forethought,
Acts 25:16
unto whom I answered, that it is not a custom of Romans to make a favour of any man to die, before that he who is accused may have the accusers face to face, and may receive place of defence in regard to the charge laid against him.
Titus 1:6
if any one is blameless, of one wife a husband, having children stedfast, not under accusation of riotous living or insubordinate --

Two

Deuteronomy 17:6
By the mouth of two witnesses or of three witnesses is he who is dead put to death; he is not put to death by the mouth of one witness;
Deuteronomy 19:15
'One witness doth not rise against a man for any iniquity, and for any sin, in any sin which he sinneth; by the mouth of two witnesses, or by the mouth of three witnesses, is a thing established.
Matthew 18:16
and if he may not hear, take with thee yet one or two, that by the mouth of two witnesses or three every word may stand.
John 8:17
and also in your law it hath been written, that the testimony of two men are true;
2 Corinthians 13:1
This third time do I come unto you; on the mouth of two witnesses or three shall every saying be established;
Hebrews 10:28
any one who did set at nought a law of Moses, apart from mercies, by two or three witnesses, doth die,

General references

Genesis 9:23
And Shem taketh -- Japheth also -- the garment, and they place on the shoulder of them both, and go backward, and cover the nakedness of their father; and their faces are backward, and their father's nakedness they have not seen.
Numbers 35:30
whoso smiteth a person, by the mouth of witnesses doth one slay the murderer; and one witness doth not testify against a person -- to die.
Deuteronomy 13:14
and thou hast enquired, and searched, and asked diligently, and lo, truth; the thing is established; this abomination hath been done in thy midst:
Deuteronomy 17:6
By the mouth of two witnesses or of three witnesses is he who is dead put to death; he is not put to death by the mouth of one witness;