Those (unthinking ones) who have bought unbelief in exchange for belief can in no way harm God (and His true friends who fear and rely on Him.) For them is a tremendous punishment
As for those who buy denial in exchange of believing in their essential reality, they cannot cause any harm to Allah. There is severe burning (suffering) for them.
Sayyed Abbas Sadr-Ameli
Verily those who have bought infidetily for faith, never shall they harm Allah at all; and they will have a painful torment
Al-muntakhab fi tafsir al-Qur'an al-Karim
Those who exchanged faith for infidelity shall never harm Allah in the least and their awaits them the torment which shall be laid on the damned