Revelation 11:3

And I will give to my two witnesses to prophesy twelve hundred and sixty days, clothed in sackcloth.

Revelation 11:2

But the court which is without the temple cast out and measure it not: for it is given to the Gentiles: and they shall tread the holy city forty two months.

Revelation 12:6

And the woman fled into the wilderness, where she hath a place prepared by God, that they may feed her twelve hundred and sixty days.

Matthew 18:16

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

Luke 24:48

And ye are witnesses of these things. And behold I send the promise of my Father upon you:

John 3:5-8

Jesus answered, Verily, verily I say unto thee, Except a man be born of water and the Spirit, he cannot enter into the kingdom of God.

John 3:27

John answered and said, A man can receive nothing, unless it be given him from heaven.

John 15:27

Ye also testify, because ye have been with me from the beginning.

Acts 1:8

But ye shall receive power, the Holy Ghost being come upon you, and shall be witnesses to me, both in Jerusalem, and in all Judea, and Samaria, and to the uttermost part of the earth.

Acts 2:32

This Jesus God hath raised up, whereof all we are witnesses.

Acts 3:15

But ye killed the Prince of life, whom God hath raised from the dead, whereof we are witnesses.

Acts 13:31

And he was seen many days by them who came up with him from Galilee to Jerusalem, who are his witnesses to the people.

1 Corinthians 12:28

And God hath set in the church, first, apostles, secondly, prophets, thirdly, teachers: afterward miracles, then gifts of healing, helps, governments, different kinds of tongues.

2 Corinthians 13:1

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

Ephesians 4:11

And he gave some apostles, and some prophets, and some evangelists, and some pastors and teachers;

Revelation 1:5

And from Jesus Christ, the faithful witness, the first begotten from the dead, and the prince of the kings of the earth:

Revelation 13:5

And there was given him a mouth speaking great things and blasphemy, and authority was given him forty and two months.

Revelation 19:10

And I fell before his feet to worship him: but he saith to me, See thou do it not: I am thy fellow-servant, and of thy brethren that have the testimony of Jesus. Worship God. The testimony of Jesus is the spirit of prophecy.

Revelation 20:4

And I saw thrones, and they sat on them, and judgment was given to them; and I saw the souls of them who had been beheaded for the testimony of Jesus, and for the word of God, and those who had not worshiped the wild beast nor his image, neither had received the mark on their forehead or on their hand; and they lived and reigned with Christ a thousand years.

Treasury of Scripture Knowledge

Summary

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

They shall

Clothed

General references

Bible References

I will give power, etc

John 3:27
John answered and said, A man can receive nothing, unless it be given him from heaven.
1 Corinthians 12:28
And God hath set in the church, first, apostles, secondly, prophets, thirdly, teachers: afterward miracles, then gifts of healing, helps, governments, different kinds of tongues.
Ephesians 4:11
And he gave some apostles, and some prophets, and some evangelists, and some pastors and teachers;

Witnesses

Revelation 20:4
And I saw thrones, and they sat on them, and judgment was given to them; and I saw the souls of them who had been beheaded for the testimony of Jesus, and for the word of God, and those who had not worshiped the wild beast nor his image, neither had received the mark on their forehead or on their hand; and they lived and reigned with Christ a thousand years.
Luke 24:48
And ye are witnesses of these things. And behold I send the promise of my Father upon you:
John 15:27
Ye also testify, because ye have been with me from the beginning.
Acts 1:8
But ye shall receive power, the Holy Ghost being come upon you, and shall be witnesses to me, both in Jerusalem, and in all Judea, and Samaria, and to the uttermost part of the earth.
Acts 2:32
This Jesus God hath raised up, whereof all we are witnesses.
Acts 3:15
But ye killed the Prince of life, whom God hath raised from the dead, whereof we are witnesses.
Acts 13:31
And he was seen many days by them who came up with him from Galilee to Jerusalem, who are his witnesses to the people.

They shall

Revelation 19:10
And I fell before his feet to worship him: but he saith to me, See thou do it not: I am thy fellow-servant, and of thy brethren that have the testimony of Jesus. Worship God. The testimony of Jesus is the spirit of prophecy.

A thousand

Revelation 11:2
But the court which is without the temple cast out and measure it not: for it is given to the Gentiles: and they shall tread the holy city forty two months.
Revelation 12:6
And the woman fled into the wilderness, where she hath a place prepared by God, that they may feed her twelve hundred and sixty days.

Clothed

John 3:5
Jesus answered, Verily, verily I say unto thee, Except a man be born of water and the Spirit, he cannot enter into the kingdom of God.

General references

Romans 9:2
That I have great sorrow and continual anguish in my heart.