There are three witnesses:

Jesus Christ is the one who came with the water of his baptism and the blood of his death. He came not only with the water, but with both the water and the blood. And the Spirit himself testifies that this is true, because the Spirit is truth.

While they were eating, Jesus took a piece of bread, gave a prayer of thanks, broke it, and gave it to his disciples. "Take and eat it," he said; "this is my body."

"this is my blood, which seals God's covenant, my blood poured out for many for the forgiveness of sins.

Go, then, to all peoples everywhere and make them my disciples: baptize them in the name of the Father, the Son, and the Holy Spirit,

"The Helper will come---the Spirit, who reveals the truth about God and who comes from the Father. I will send him to you from the Father, and he will speak about me.

God's Spirit joins himself to our spirits to declare that we are God's children.

For how can those who abandon their faith be brought back to repent again? They were once in God's light; they tasted heaven's gift and received their share of the Holy Spirit;

Suddenly there was a noise from the sky which sounded like a strong wind blowing, and it filled the whole house where they were sitting.

They were all filled with the Holy Spirit and began to talk in other languages, as the Spirit enabled them to speak.

who has placed his mark of ownership upon us, and who has given us the Holy Spirit in our hearts as the guarantee of all that he has in store for us.

For this reason Jesus also died outside the city, in order to purify the people from sin with his own blood.

which was a symbol pointing to baptism, which now saves you. It is not the washing off of bodily dirt, but the promise made to God from a good conscience. It saves you through the resurrection of Jesus Christ,

Many witnesses told lies against Jesus, but their stories did not agree.

The words of the prophets agree completely with this. As the scripture says,