'Tremble' in the Bible

Isaac began to tremble uncontrollably. “Who was it then,” he said, “who hunted game and brought it to me? I ate it all before you came in, and I blessed him. Indeed, he will be blessed!”

and he saith unto his brethren, 'My money hath been put back, and also, lo, in my bag:' and their heart goeth out, and they tremble, one to another saying, 'What is this God hath done to us!'