NET
4 Those are the terms that I charged your ancestors to keep when I brought them out of Egypt, that place that was like an iron-smelting furnace. I said at that time, “Obey me and carry out the terms of the covenant exactly as I commanded you. If you do, you will be my people and I will be your God.
Darby
4 which I commanded your fathers in the day that I brought them forth out of the land of Egypt, from the iron furnace, saying, Hearken unto my voice and do them, according to all that I command you; so shall ye be my people, and I will be your God:
KJV
4 Which I commanded your fathers in the day [that] I brought them forth out of the land of Egypt, from the iron furnace, saying, Obey my voice, and do them, according to all which I command you: so shall ye be my people, and I will be your God: