מַֽיִם־גְּנוּבִ֥ים יִמְתָּ֑קוּ וְלֶ֖חֶם סְתָרִ֣ים יִנְעָֽם׃
געגנבֿעט װאַסער איז זיס, און פֿאַרבאָרגן ברױט איז געשמאַק.
Rashi
Stolen water is sweet The pleasure afforded by intimacy with a single woman does not equal that afforded by intimacy with a married woman. Also, regarding the commandments (other editions: sectarianism), stolen water is sweet, for they were afraid to do it in public, but did it in secret.