Sefer HaBahir 66

1And Rabbi Rachumai said, "Why is it writtern, 'I too,' (Leviticus 26:28)? The Blessed Holy One said, 'I will discipline you,' and Knesset Yisrael said, 'Do not silently-imagine that I seek compassion for you. Rather, I will reprimand you. It is not enough that I will adjudicate the case,* rather, I will also punish** you.'"*["Adun hadin" — could also read "Adon hadin," "Master of judgment."]**["Reprimand"]