But Allah bears witness regarding that which He sent down to you, (that) He sent it down with His knowledge and the angels (too) bear witness and Allah is sufficient as a Witness.
People may or may not accept the Quran as a Divine message but Allah (SWT) and then Allah (SWT) does not lose anything because all that is in the universe belongs to Him. His angels bear witness that it was sent down by Him through Jibreel (PBH) with His knowledge. Those who reject the Quran will land in hell. The whole mankind is invited to believe in Prophet Muhammed (PBH) i.e. to follow the Quran according to his teachings. If they reject then Allah (SWT) does not lose anything because all that is in the universe belongs to Him.
