Deuteronomy 4:15

And so, guard your souls carefully. You saw no likeness on the day that the Lord God spoke to you on Horeb from the midst of fire

Other versions

King James Version

Take ye therefore good heed unto yourselves; for ye saw no manner of similitude on the day that the LORD spake unto you in Horeb out of the midst of the fire:

English Standard Version

"Therefore watch yourselves very carefully. Since you saw no form on the day that the LORD spoke to you at Horeb out of the midst of the fire,

New International Version

You saw no form of any kind the day the LORD spoke to you at Horeb out of the fire. Therefore watch yourselves very carefully,