Exodus 3:12
And he said, Truly I will be with you; and this will be the sign to you that I have sent you: when you have taken the children of Israel out of Egypt, you will give worship to God on this mountain.And he said, Truly I will be with you; and this will be the sign to you that I have sent you: when you have taken the children of Israel out of Egypt, you will give worship to God on this mountain.