אָ֭דָם עָשֻׁ֣ק בְּדַם־נָפֶשׁ עַד־בּ֥וֹר יָ֝נ֗וּס אַל־יִתְמְכוּ־בֽוֹ׃
사람의 피를 흘린 자는 함정으로 달려갈 것이니 그를 막지 말지니라
Avot D'Rabbi Natan
Anyone who causes others to do good, his own sins will not overtake him. For it cannot be that his students will inherit the World to Come while he himself goes down to Sheol, as it says (Psalms 16:10), “For you will not abandon me to Sheol.” And anyone who causes others to sin, no amount of repentance will ever help him. For it cannot be that his students go down to Sheol while he himself inherits the World to Come, as it says (Proverbs 28:17), “A person with blood on his hands will go down into a pit.”