זכריה יג:ו מדרש: Mekhilta d'Rabbi Yishmael

(Ibid. 6) "for My lovers and for the keepers of My mitzvoth": "for My lovers": our father Abraham and the like. "and for the keepers of My mitzvoth": the prophets and the elders. R. Nathan says: "for My lovers and the keepers of My mitzvoth": the Jews who dwell in Eretz Yisrael, and give their lives for the mitzvoth. Why are you going out to be executed? Because I circumcised my son, the Jew. Why are you going out to be burned? Because I read in the Torah. Why are you going out to be crucified? Because I ate matzoh. Why are you being given a hundred lashes? Because I took the lulav. And (Zechariah 13:6) "wherewith I was beaten in the house of my Lover" — these lashes have caused me to be beloved by my Father in heaven.