The Quran

إِنَّ الَّذينَ كَفَروا يُنادَونَ لَمَقتُ اللَّهِ أَكبَرُ مِن مَقتِكُم أَنفُسَكُم إِذ تُدعَونَ إِلَى الإيمانِ فَتَكفُرونَ

Muhammad Asad

[But,] behold, as for those who are bent on denying the truth - [on that same Day] a voice will call out unto them:¹ "Indeed, greater than your [present] loathing of yourselves² was God's loathing of you [at the time] when you were called unto faith but went on denying the truth!"³

Lit., "they will be called" or "summoned".
I.e., "on realizing, belatedly, your past sinfulness".
Since it is impossible to attribute to God a purely human emotion, "God's loathing" of those sinners is obviously a metonym for His rejection of them (Razi), similar to the metonymic use of the expression "God's wrath (ghadab)" in the sense of His condemnation (see first sentence of note 4 on 1:7).