'Ready' in the Bible

Now, lo, ye are ready, so that at the time that ye hear the voice of the cornet, the flute, the harp, the sackbut, the psaltery, and the symphony, and all kinds of music, ye fall down and do obeisance to the image that I have made! -- and lo, ye do no obeisance -- in that hour ye are cast into the midst of a burning fiery furnace; who is that God who doth deliver you out of my hands?'