This answer describes a scenario where if a sin (relations with a non Jew for purposes of marriage) is committed without witnesses, one gets punished with kares, but if there are witnesses he gets only lashes. This seems strange since It goes against the generally established paradigm that th...

Bereishit 16:16: וְאַבְרָ֕ם בֶּן־שְׁמֹנִ֥ים שָׁנָ֖ה וְשֵׁ֣שׁ שָׁנִ֑ים בְּלֶֽדֶת־הָגָ֥ר אֶת־יִשְׁמָעֵ֖אל לְאַבְרָֽם׃‏ Avram was eighty-six years old when Hagar bore Yishma'el to Avram. Rashi comments: לְשִׁבְחוֹ שֶׁל יִשְׁמָעֵאל נִכְתַּב, לְהוֹדִיעַ שֶׁהָיָה בֶּן י"ג שָׁנָה כְּשֶׁנּ...