NET
20 For they could not bear what was commanded: “If even an animal touches the mountain, it must be stoned.”
Darby
20 (for they were not able to bear what was enjoined: And if a beast should touch the mountain, it shall be stoned;
KJV
20 (For they could not endure that which was commanded, And if so much as a beast touch the mountain, it shall be stoned, or thrust through with a dart: