﴿ دَرَجَٰتٍۢ مِّنْهُ وَمَغْفِرَةًۭ وَرَحْمَةًۭ ۚ وَكَانَ ٱللَّهُ غَفُورًۭا رَّحِيمًا ﴾

“[many] degrees thereof - and for­giveness of sins, and His grace; for God is indeed much-forgiving, a dispenser of grace.”

degrees that is stations one higher than the other in honour from Him and forgiveness and mercy maghfiratan and rahmatan are in the accusative because they constitute an object of the implied verb faddala ‘He has preferred’. Surely God is ever Forgiving to His friends Merciful to those that obey Him.