Exodus 3:12

NLT: Then God told him, "I will be with you. And this will serve as proof that I have sent you: When you have brought the Israelites out of Egypt, you will return here to worship God at this very mountain."

GNT: God answered, “I will be with you, and when you bring the people out of Egypt, you will worship me on this mountain. That will be the proof that I have sent you.”

NKJV: So He said, “I will certainly be with you. And this shall be a sign to you that I have sent you: When you have brought the people out of Egypt, you shall serve God on this mountain.”