And who is better in speech than he who invites to Allah and does righteous deeds, and says: I am one of the Muslims. [Fussilat 41:33]
Invite to the Way of your Lord with wisdom and fair preaching, and argue with them in a way that is better. Truly, your Lord knows best who has gone astray from His Path, and He is the Best Aware of those who are guided. [An-Nahl 16:125]