KJV - Seeing it is a righteous thing with God to recompense tribulation to them that trouble you;

ASV - if so be that it is righteous thing with God to recompense affliction to them that afflict you,

BBE - For it is an act of righteousness on God's part to give trouble as their reward to those who are troubling you,

WEB - Since it is a righteous thing with God to repay affliction to those who afflict you,

YLT - since `it is' a righteous thing with God to give back to those troubling you -- trouble,

Notes