God has equipped Moses with supernatural powers to validate his call, and assured Moses of his inevitable success in bringing the Israelites out of Egypt, despite Moses’ unbelief and lack of confidence in himself. Moses has all he needs to return back to Egypt to rescue the Hebrews from the snares of the Egyptians.
However, Moses must first return from the wilderness to Midian, to formally seek the permission of Jethro to rejoin his kindred back in Egypt.