Talmud zu Bamidbar 25:12

“One who copulates with a Gentile woman,” etc. Rebbi Ismael stated: This is one who marries a Gentile woman, sires children, and from her raises enemies of the Omnipresent⁷²In Megillah 4:10 (Babli 25a) this is R. Ismael’s explanation of Lev. 18:21, giving one’s descendants to the Moloch.. ⁷³Babli 82a, Num. rabba 20(26), Tanhuma Balaq 21, Tanhuma Buber Balaq 30. Num. 25:7. It is written: Phineas ben Eleazar ben Aharon the priest saw. What did he see⁷⁴Since Zimri did his deed in public, everybody saw.? He understood what happened and remembered practice: “One who copulates with a Gentile woman, zealots strike him.” It was stated: not with the agreement of the Sages⁷⁵Since in most cases the zealot’s intervention would be first degree murder.. Would Phineas act against the Sages? Rebbi Jehudah bar Pazi said, they wanted to excommunicate him had not the Holy Spirit jumped on him and declared that an eternal covenant of priesthood shall be for him and his descendants after him⁷⁶Num. 25:12., etc.

R. Joshua said: Great is peace, for the covenant with the priests was made with [the word] ‘peace’, as it is stated, Behold, I give unto him My covenant of peace.⁴¹ibid. XXV, 12.