'Baptism' in the Bible

He went into all the region around the Jordan River, preaching a baptism of repentance for the forgiveness of sins.

(Now all the people who heard this, even the tax collectors, acknowledged God's justice, because they had been baptized with John's baptism.

I have a baptism to undergo, and how distressed I am until it is finished!

John's baptism -- was it from heaven or from people?"