'Doing' in the Bible

But when Sanballat the Horonite, and Tobiah the servant, the Ammonite, and Geshem the Arabian, heard it, they ridiculed us, and despised us, and said, "What is this thing that you are doing? Will you rebel against the king?"

He spoke before his brothers and the army of Samaria, and said, "What are these feeble Jews doing? Will they fortify themselves? Will they sacrifice? Will they finish in a day? Will they revive the stones out of the heaps of rubbish, since they are burned?"

I sent messengers to them, saying, "I am doing a great work, so that I can't come down. Why should the work cease, while I leave it, and come down to you?"