1 John 5:8

and three are who are testifying in the earth, the Spirit, and the water, and the blood, and the three are into the one.

Matthew 26:26-28

And while they were eating, Jesus having taken the bread, and having blessed, did brake, and was giving to the disciples, and said, 'Take, eat, this is my body;'

Matthew 28:19

having gone, then, disciple all the nations, (baptizing them -- to the name of the Father, and of the Son, and of the Holy Spirit,

Mark 14:56

for many were bearing false testimony against him, and their testimonies were not alike.

John 15:26

And when the Comforter may come, whom I will send to you from the Father -- the Spirit of truth, who from the Father doth come forth, he will testify of me;

Acts 2:2-4

and there came suddenly out of the heaven a sound as of a bearing violent breath, and it filled all the house where they were sitting,

Acts 15:15

and to this agree the words of the prophets, as it hath been written:

Romans 8:16

The Spirit himself doth testify with our spirit, that we are children of God;

2 Corinthians 1:22

who also sealed us, and gave the earnest of the Spirit in our hearts.

Hebrews 6:4

for it is impossible for those once enlightened, having tasted also of the heavenly gift, and partakers having became of the Holy Spirit,

Hebrews 13:12

Wherefore, also Jesus -- that he might sanctify through his own blood the people -- without the gate did suffer;

1 Peter 3:21

also to which an antitype doth now save us -- baptism, (not a putting away of the filth of flesh, but the question of a good conscience in regard to God,) through the rising again of Jesus Christ,

1 John 5:6-7

This one is he who did come through water and blood -- Jesus the Christ, not in the water only, but in the water and the blood; and the Spirit it is that is testifying, because the Spirit is the truth,

Treasury of Scripture Knowledge

Summary

And there are three that bear witness in earth, the spirit, and the water, and the blood: and these three agree in one.

There

Bible References

There

1 John 5:7
because three are who are testifying in the heaven, the Father, the Word, and the Holy Spirit, and these -- the three -- are one;

The spirit

1 John 5:6
This one is he who did come through water and blood -- Jesus the Christ, not in the water only, but in the water and the blood; and the Spirit it is that is testifying, because the Spirit is the truth,
Matthew 26:26
And while they were eating, Jesus having taken the bread, and having blessed, did brake, and was giving to the disciples, and said, 'Take, eat, this is my body;'
Matthew 28:19
having gone, then, disciple all the nations, (baptizing them -- to the name of the Father, and of the Son, and of the Holy Spirit,
John 15:26
And when the Comforter may come, whom I will send to you from the Father -- the Spirit of truth, who from the Father doth come forth, he will testify of me;
Romans 8:16
The Spirit himself doth testify with our spirit, that we are children of God;
Hebrews 6:4
for it is impossible for those once enlightened, having tasted also of the heavenly gift, and partakers having became of the Holy Spirit,

The water

Acts 2:2
and there came suddenly out of the heaven a sound as of a bearing violent breath, and it filled all the house where they were sitting,
2 Corinthians 1:22
who also sealed us, and gave the earnest of the Spirit in our hearts.

The blood

Hebrews 13:12
Wherefore, also Jesus -- that he might sanctify through his own blood the people -- without the gate did suffer;
1 Peter 3:21
also to which an antitype doth now save us -- baptism, (not a putting away of the filth of flesh, but the question of a good conscience in regard to God,) through the rising again of Jesus Christ,

And these

Mark 14:56
for many were bearing false testimony against him, and their testimonies were not alike.
Acts 15:15
and to this agree the words of the prophets, as it hath been written: