SEeing the multitudes] The people, mentioned, chap 4. 25. This was the occasion of this large sermon following. he went up into a mountain] As the law was given on a mount, Exodus 19:3; Exodus 19:23. with Exodus 20:1. so Christ expounds it here on a mountain. It was also a fit place for so many to hear. when he was set] As their doctours used to do in teaching, to shew their authority, chap. 23. 2. Luke 4:20-21. his disciples came unto him] Such as usually repaired to him, or attended constantly upon him.