חָטָ֡אתִי מָ֤ה אֶפְעַ֨ל ׀ לָךְ֮ נֹצֵ֪ר הָאָ֫דָ֥ם לָ֤מָה שַׂמְתַּ֣נִי לְמִפְגָּ֣ע לָ֑ךְ וָאֶהְיֶ֖ה עָלַ֣י לְמַשָּֽׂא׃
사람을 감찰하시는 자여 내가 범죄하였은들 주께 무슨 해가 되오리이까 어찌하여 나로 과녁을 삼으셔서 스스로 무거운 짐이 되게 하셨나이까
Rashi
as a mark for You As an object that a man strikes when he is angry and vents upon it the entire act of his hatred (other editions: his sin).
Rashi
so that I have become a burden to myself [Etz Chayim ms: Like “and I have become a burden to You.”] This is one of the words in which Scripture euphemized, and they are known as the emendation of the scribes.