Surah Ar Rum Tafseer

لِيَجْزِيَ الَّذِينَ امَنُوا وَعَمِلُوا الصَّالِحَاتِ مِن فَضْلِهِ

Whosoever disbelieves will suffer from his disbelief, and whosoever does righteous good deeds, then such will prepare a good place for themselves. That He may reward those who believe. and do righteous good deeds, out of His bounty.

meaning that He may reward them from His bounty, in return for one good deed, he will get the reward for ten, up to seven hundred like it, as much as Allah wills.

إِنَّهُ لَا يُحِبُّ الْكَافِرِينَ

Verily, He likes not the disbelievers.

yet He is still just with them and does not oppress them