if then they believe as you believe in him they are indeed on the right course and if they turn back then they are only in great opposition so allah will suffice you against them and he is the hearing the knowing.
فإن آمنوا بمثل ما آمنتم به فقد اهتدوا وإن تولوا فإنما هم في شقاق فسيكفيكهم الله وهو السميع العليم