'Baptism' in the Bible

And they were given baptism by him in the river Jordan, saying openly that they had done wrong.

But when he saw a number of the Pharisees and Sadducees coming to his baptism, he said to them, Offspring of snakes, at whose word are you going in flight from the wrath to come?

Truly, I give baptism with water to those of you whose hearts are changed; but he who comes after me is greater than I, whose shoes I am not good enough to take up: he will give you baptism with the Holy Spirit and with fire:

Then Jesus came from Galilee to John at the Jordan, to be given baptism by him.

But John would have kept him back, saying, It is I who have need of baptism from you, and do you come to me?

But Jesus made answer, saying to him, Let it be so now: because so it is right for us to make righteousness complete. Then he gave him baptism.

And Jesus, having been given baptism, straight away went up from the water; and, the heavens opening, he saw the Spirit of God coming down on him as a dove;

The baptism of John, where did it come from? from heaven or from men? And they were reasoning among themselves, saying, If we say, From heaven; he will say to us, Why then did you not have faith in him?

Go then, and make disciples of all the nations, giving them baptism in the name of the Father and of the Son and of the Holy Spirit: