2 Thessalonians 1:6 in the King James Version
Seeing it is a righteous thing with God to recompense tribulation to them that trouble you;
Context
5 This is an obvious sign of the righteous judgment of God, to the end that you may be counted worthy of God’s Kingdom, for which you also suffer.
6 For it is a righteous thing with God to repay affliction to those who afflict you,
7 and to give relief to you who are afflicted with us when the Lord Jesus is revealed from heaven with his mighty angels in flaming fire,