5 Yet we say, brethren (for He did not spare those men: He who was to be scourged by them first scourged them), that He gave us a certain sign, in that He made a scourge of small cords, and with it lashed the unruly, who were making merchandise of God's temple. For indeed every man twists for himself a rope by his sins: “Woe to them who draw sins as a long rope?” Who makes a long rope? He who adds sin to sin. How are sins added to sins? When the sins which have been committed are covered over by other sins.
One has committed a theft: that he may not be found out to have committed it, he seeks the astrologer. It were enough to have committed theft: why will you add sin to sin? Behold two sins committed. When you are forbidden to go to the astrologer, you revile the bishop: behold three sins. When you hear it said of you, Cast him forth from the Church; you say, I will betake me to the party of Donatus: behold you add a fourth sin. The rope is growing; be afraid of the rope. It is good for you to be corrected here, when you are scourged with it; that it may not be said of you at the last, “Bind ye his hands and feet, and cast him forth into outer darkness.” For, “With the cords of his own sins is every one bound.” The former of these is the saying of the Lord, the latter that of another Scripture; but yet both are the sayings of the Lord.
With their own sins are men bound and cast into outer darkness.
Source: Tractates on the Gospel of John (New Advent)