Deuteronomy 5:1-7

1 And Moses sent for all Israel, and said to them, Give ear, O Israel, to the laws and the decisions which I give you today, and give attention to them so that you may keep and do them.
2 The Lord our God made an agreement with us in Horeb.
3 The Lord did not make this agreement with our fathers but with us, who are all living and present here today.
4 The word of the Lord came to you face to face on the mountain, out of the heart of the fire,
5 (I was between the Lord and you at that time, to make clear to you the word of the Lord: because, through fear of the fire, you did not go up the mountain;) saying,
6 I am the Lord your God, who took you out of the land of Egypt, out of the prison-house.
7 You are to have no other gods but me.