'Leave' in the Bible

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?"

But in all this [time] I was not at Jerusalem; for in the two and thirtieth year of Artaxerxes king of Babylon I went to the king: and after certain days asked I leave of the king,