Before coming to Sinai, what had Moses taught Israel?

Answer

"When they have a matter, they come unto me; and I judge between one and another, and I do make them
know the statutes of God, and His laws." Ex. 18: 16.
NOTE - All this shows that the law of God existed from the beginning, and was known and taught
in the world before it was proclaimed at Sinai.

Who, therefore, did the speaking through these men?
By what did Peter, on the day of Pentecost, say that Christ had been approved by God?
By what other title is the Comforter designated?
How did God reprove their disobedience?
Who gives this rest from sin?
Against whom do we wrestle?
Does God willingly afflict the children of men?

Questions & Answers are from the book Bible Readings for the Home Circle