To believe with Allah and His Messenger, and to Strengthen Him, and to revere Him, and to glorify Him in the dawn and dusk.
Allah doesn’t come to the earth. Instead He appoints Messengers with His Message Adhikr in order to familiarize Him to mankind, and to witness the life of Adhikr among the mankind; and also to give glad tiding to the believers who testify Adhikr that they can return to the Paradise, and to warn the Hypocrites who hide Adhikr and their blind followers who reject Adhikr that they have Hellfire as the worst returning place.
As explained in verses 2: 62; and 5: 69, there is no any group of believers anywhere in the world to witness the life of the Book Adhikr among the mankind, the people belonging to community of Messenger Muhammed if believe with the Lord as single Deity and believe in the Hereafter, and are doing righteous deeds, there shall be no fear upon them, and for them will not be grieved. See explanation 7: 157-159; 9: 31; and 24: 41.