Behold, I have made your face stronger than their faces, and your forehead harder than their foreheads
Other versions
King James Version
Behold, I have made thy face strong against their faces, and thy forehead strong against their foreheads.English Standard Version
Behold, I have made your face as hard as their faces, and your forehead as hard as their foreheads.New International Version
But I will make you as unyielding and hardened as they are.