'Ready' in the Bible

Now if ye be ready at the time that ye hear the sound of the cornet, pipe, lute, sambuca, psaltery, and bagpipe, and all kinds of music, to fall down and worship the image that I have made, well: but if ye worship not, ye shall be cast that same hour into the midst of a burning fiery furnace: and who is the God that shall deliver you out of my hands?