For he shall complete his word, while abbreviating it out of equity. For the Lord shall accomplish a brief word upon the earth.
Other versions
King James Version
For he will finish the work, and cut it short in righteousness: because a short work will the Lord make upon the earth. English Standard Version
for the Lord will carry out his sentence upon the earth fully and without delay."New International Version
For the Lord will carry out his sentence on earth with speed and finality."