an angel … But I will not go with you: This angel might not be the "angel of the LORD," since in Exodus and other parts of the Old Testament, the angel of the LORD is closely associated with God's presence (see 3:2; 23:20–23).
Or, God might have meant that while he would lead them through the angel (33:2), he would not live among them in the tabernacle as planned (33:3).
Canaanites … Jebusites: See study note on 3:8.