19:8 we will do. Moses, as the mediator between God and His people, is here a distinct type of the Lord Jesus Christ (I Timothy 2:5). Note that the people promised, both before and after the giving of the law (Exodus 24:3) to do everything the Lord commanded.
19:17 out of the camp. This is the first of more than thirty references to events that took place outside of the camp of the Israelites in the wilderness. Anything unclean was to be “burned without the camp” (Hebrews 13:11). As He bore our sins, the Lord Jesus “suffered without the gate,” and thus we are exhorted to “go forth therefore unto Him without the camp, bearing His reproach” (Hebrews 13:12,13).