In the fourth verse (106), the Holy Prophet ﷺ at has been guided to a specific course of action. He has been asked not to worry about the acceptance or non-acceptance of the call. For him, the best course was to keep following the way revealed to him through Wahy from his Rabb, the major element of which is the belief that no one is worthy of worship but Allah. That he should continue preaching with his message of truth is part of what has been revealed. So, believing in Allah and remaining steadfast on the way ordained for him, he should avoid feeling concerned about disbelievers and their unfortunate non-acceptance of the call.