Good News Translation
Don't commit the same sin twice. The punishment you get the first time ought to be enough.

New Revised Standard Version
Do not commit a sin twice; not even for one will you go unpunished.

Contemporary English Version
You won't escape punishment if you commit a sin even once, much less twice.

New American Bible
Do not plot to repeat a sin; even for one, you will not go unpunished.

Douay-Rheims Bible
Nor bind sin to sin: for even in one thou shalt not be unpunished.

Nor bind sin to sin: for even in one thou shalt not be unpunished.

Sirach 7:6
Seek not to be made a judge, unless thou have strength enough to extirpate iniquities: lest thou fear the person of the powerful, and lay a stumblingblock for thy integrity.

Sirach 7:7
Offend not against the multitude of a city, neither cast thyself in upon the people,

Sirach 7:9
Be not fainthearted in thy mind:

Sirach 7:10
Neglect not to pray, and to give alms.