'Washing' in the Bible

Now there were six stone water jars there for Jewish ceremonial washing, each holding twenty or thirty gallons.

Now a dispute came about between some of John's disciples and a certain Jew concerning ceremonial washing.

And said to him, Go and make yourself clean in the bath of Siloam (the sense of the name is, Sent). So he went away and, after washing, came back able to see.

His answer was: The man who is named Jesus put earth mixed with water on my eyes, and said to me, Go and make yourself clean in Siloam: so I went away and, after washing, am now able to see.

Then he put water into a basin and was washing the feet of the disciples and drying them with the cloth which was round him.

So when He had washed their feet and put on His [outer] robe and reclined at the table again, He said to them, “Do you understand what I have done for you?