Rashi on Numbers
'אולי יקרה ה לקראתי PERHAPS THE LORD WILL HAPPEN TO MEET ME — Perhaps: He is not accustomed to speak with me by day.
Sforno on Numbers
התיצב על עולותך, so that you can mentally concentrate on what you are doing during the offering of each single part of the animal, a reminder of the blood being the essence of the animal (Leviticus 17,11).
Rashbam on Numbers
וילך שפי; he was partially lame; we find the expression in this sense in Job 33,21 ושופו עצמותיו .