'Baptize' in the Bible

John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.

I indeed have baptized you with water: but he shall baptize you with the Holy Ghost.

and, coming from the market-place, if they do not baptize themselves, they do not eat; and many other things there are that they received to hold, baptisms of cups, and pots, and brazen vessels, and couches.

Was John's authority to baptize from heaven or from humans? Answer me."