Don't grumble against one another, brothers and sisters, or you will be judged. The Judge is standing at the door! (NIV)
Do not complain, brethren, against one another, so that you [yourselves] may not be judged. Look! The Judge is [already] standing at the very door. (AMP)
Grudge not one against another, brethren, lest ye be condemned: behold, the judge standeth before the door. (KJV)