John 1:31

And I had not known him, but that he would be made known to Israel. Because of this I came immersing in water.

Luke 1:17

And he will go ahead, in front of him, in the spirit and power of Elijah, to turn back the hearts of fathers toward children, and the disobedient in a mentality of the righteous, to make ready for Lord a people prepared.

Isaiah 40:3-5

The voice of a man crying out in the wilderness, Prepare ye the way of LORD, make straight in the desert a highway for our God.

Malachi 3:1

Behold, I send my messenger, and he shall prepare the way before me. And LORD, whom ye seek, will suddenly come to his temple. And the messenger of the covenant, whom ye desire, behold, he comes, says LORD of hosts.

Malachi 4:2-5

But to you who fear my name the sun of righteousness shall arise with healing in its wings, and ye shall go forth, and frolic as calves of the stall.

Matthew 3:6

and they were immersed by him in the Jordan, confessing their sins.

Mark 1:3-5

The voice of a man crying out in the wilderness: Prepare ye the way of Lord. Make his paths straight.

Luke 1:76-80

And thou, child, will be called a prophet of the Most High. For thou will go ahead, before the face of Lord, to prepare his ways,

Luke 2:39-42

And when they completed all things according to the law of Lord, they returned into Galilee to their own city Nazareth.

Luke 3:3-4

And he came into all the region around the Jordan, preaching an immersion of repentance for remission of sins,

John 1:7

This man came for testimony so that he might testify about the light, so that all might believe through him.

John 1:33

And I had not known him. But he who sent me to immerse in water, he said to me, Upon whomever thou will see the Spirit descending and remaining on him, this is he who immerses in Holy Spirit.

Acts 19:4

And Paul said, John indeed immersed an immersion of repentance, saying to the people that they should believe in him who was coming after him, that is, in Jesus, the Christ.

Treasury of Scripture Knowledge

Summary

And I knew him not: but that he should be made manifest to Israel, therefore am I come baptizing with water.

Bible References

I knew

John 1:33
And I had not known him. But he who sent me to immerse in water, he said to me, Upon whomever thou will see the Spirit descending and remaining on him, this is he who immerses in Holy Spirit.
Luke 1:80
And the child grew, and became strong in spirit. And he was in the desolate regions until the day of his manifestation to Israel.
Luke 2:39
And when they completed all things according to the law of Lord, they returned into Galilee to their own city Nazareth.

But

John 1:7
This man came for testimony so that he might testify about the light, so that all might believe through him.
Isaiah 40:3
The voice of a man crying out in the wilderness, Prepare ye the way of LORD, make straight in the desert a highway for our God.
Malachi 3:1
Behold, I send my messenger, and he shall prepare the way before me. And LORD, whom ye seek, will suddenly come to his temple. And the messenger of the covenant, whom ye desire, behold, he comes, says LORD of hosts.
Malachi 4:2
But to you who fear my name the sun of righteousness shall arise with healing in its wings, and ye shall go forth, and frolic as calves of the stall.
Luke 1:17
And he will go ahead, in front of him, in the spirit and power of Elijah, to turn back the hearts of fathers toward children, and the disobedient in a mentality of the righteous, to make ready for Lord a people prepared.

Therefore

Matthew 3:6
and they were immersed by him in the Jordan, confessing their sins.
Mark 1:3
The voice of a man crying out in the wilderness: Prepare ye the way of Lord. Make his paths straight.
Luke 3:3
And he came into all the region around the Jordan, preaching an immersion of repentance for remission of sins,
Acts 19:4
And Paul said, John indeed immersed an immersion of repentance, saying to the people that they should believe in him who was coming after him, that is, in Jesus, the Christ.