'Doing' in the Bible

So the Pharisees said to Him, "Look! why are they doing what on the Sabbath is unlawful?"

and from Judaea and Jerusalem and Idumaea and from beyond the Jordan and from the district of Tyre and Sidon there came to Him a vast crowd, hearing of all that He was doing.

And if any one asks you, 'Why are you doing that?' say, 'The Master needs it, and will send it back here without delay.'"

when some of the bystanders called out, "What are you doing, untying the foal?"

and asked, "By what authority are you doing these things? and who gave you authority to do them?"