In Surah Saffat Allah (SWT) asks some people, "Why don't you do what you say?" There are two interpretations here. (1) Do what ever you preach or preach only what you practice. (2) If you say and promise something then do it. Question which interpretation is correct? Ans : Second one. Thre significant ways to increase your faith, iman and belief are: (1) Dawah, (2) Recitation of Noble Qur'an and (3) Supplications. Allah (SWT) says that keep reminding the people - verily believers benefit by these reminders. Two things can be concluded from this last point. One, if you have the benefit of believers ( or would be believers too ) you will keep reminding them. Secondly, there is no surety of non-believers benefiting from these reminders of the hereafter. The trouble is that till you indulge in the business of reminding you shall never know who shall believe and who shall not.