[4:170] O people, the Messenger has now come to you with the truth from your Lord; so believe, it is better for you. And if you disbelieve, then surely to God belongs all that is in the heavens and in the earth; and God is ever Knowing, Wise.
"O you people of the Book": He states that He (s) is not in need of them. If they believe, they will have acquired good fortune for themselves. If they disbelieve, they will have drawn afflictions upon themselves. The Real (t) is beyond being described by the beauty of anyone's consent (wifāq) or the deficiency of anyone's opposition (khilāf).
And if you disbelieve, then surely to God belongs all that is in the heavens and in the earth: it means that if they have abandoned the practice of servanthood (ʿubūdiyya) in their actions, they [nonetheless] cannot leave the reality of their being His servants as created beings. God Most High said: There is none in the heavens and the earth but he comes to the Compassionate One as a servant [19:93].