What are the most prominent pieces of advice, directives, ideas, or da'wah programs that can be utilized in the current climate of open da'wah, to confront the scarcity of scholars and preachers and the spread of ignorance, innovations, and reprehensible acts?

The questioner is advised to fear Allah and to remain steadfast in His command. The righteousness of the caller is his means to convey his message and to have his advice accepted. He is also advised to be keen on acquiring beneficial knowledge, and on fostering brotherhood, solidarity, and cooperation with those participating in da'wah, so that they may be as one man. He should avoid dispute and contention, and show concern for all categories of people, directing the da'wah discourse to all social levels, and exercising wisdom and balance in the da'wah discourse to achieve benefits and ward off harms.