This chapter,

I. Continues and concludes God's discourse with Moses, concerning bringing Israel out of Egypt. [1.] Moses objects the peoples unbelief, ver. 1. and God answers that objection by giving him a power to work miracles: (1.) To turn his rod into a serpent, and then into a rod again, ver. 2-5. (2.) To make his hand leprous, and then whole again, ver. 6-8. (3.) To turn the water into blood, ver. 9. [2.]Moses objects his own slowness of speech, ver. 10. and begs to be excused, ver. 13. But God answers this objection, (1.) By promising him his presence, ver. 11, 12. (2.) By joining Aaron in commission with him, ver. 14-16. (3.) By putting an honour upon the very staff in his hand, ver. 17.

II. Moses's execution of his commission. (1.) He obtains leave of his father-in-law to return into Egypt, ver. 18. (2.) He receives further instructions from God, ver. 19, 21-23. (3.) He hastens his departure, and takes his family with him, ver. 20. (4.) He meets with some difficulty about the circumcising of his son, ver. 24. 26. (5.) He has the satisfaction of meeting his brother Aaron, ver. 27, 28. (6.) He produceth his commission before the elders of Israel, to their great joy, ver. 29-31.