they think they have done you a favour by becoming muslims! say do not consider your islam a favour to me. no indeed! it is god who bestowed a favour on you by guiding you to the true faith. if you are telling the truth.
يمنون عليك أن أسلموا قل لا تمنوا علي إسلامكم بل الله يمن عليكم أن هداكم للإيمان إن كنتم صادقين