John 1:8

He was not the light; he came to testify to the light.

John 3:28

You will bear me witness that I said, 'I am not the Christ; I have been sent in advance of him.'

Acts 19:4

"John's baptism was a baptism in token of repentance," said Paul, "and he told the people to believe in him who was to follow him, that is, in Jesus."

Treasury of Scripture Knowledge

Summary

He was not that Light, but was sent to bear witness of that Light.

That light

General references

Bible References

That light

John 3:28
You will bear me witness that I said, 'I am not the Christ; I have been sent in advance of him.'
Acts 19:4
"John's baptism was a baptism in token of repentance," said Paul, "and he told the people to believe in him who was to follow him, that is, in Jesus."

General references

Mark 11:30
Was John's baptism from heaven or from men? Answer me."
Acts 13:24
in preparation for whose coming John had preached to all the people of Israel baptism in token of repentance.