(Exodus 19:2) "And Israel encamped there": Elsewhere it is written "and they journeyed," "and they encamped" — they journeyed in quarrel and encamped in quarrel. Here, they were of one heart — wherefore it is written "and (it) encamped." "and Israel encamped there": He said to them, you will be there for a (relatively) long time. And, indeed, we find that they were there for twelve months less ten days. "opposite the mountain": to the east of the mountain. "opposite" always signifies to the east.