'Back' in the Bible

They said therefore to him, "Who are you? Give us an answer to take back to those who sent us. What do you say about yourself?"

At this, many of his disciples went back, and walked no more with him.

and said to him, "Go, wash in the pool of Siloam" (which means "Sent"). So he went away, washed, and came back seeing.

So when he had washed their feet, put his outer garment back on, and sat down again, he said to them, "Do you know what I have done to you?

He, leaning back, as he was, on Jesus' breast, asked him, "Lord, who is it?"