Sponsor a Scholar & earn the reward!
If you feel your not teaching enough, or that you do not have enough Islamic knowledge, than make sure to sponsor a scholar who does. Only $100/month will secure the salary of an imam/teacher/Da'ie in Africa that will teach Muslims and non Muslims about Islam, give lectures in the masajid, teach the young children, boys, girls & adults. Imagine earning all the reward of the good that comes out from this, or from the many that embrace Islam because of these scholars. All of our teachers studied abroad in mostly Arabic countries and received Bachlorette in Fiqh and knowldge. All speak Arabic as well.
Why Muslims have to give Dawah
Allah says in the Holy Quran: Chapter 16, Surah An-Nahl Ayat 125:
Invite to the Way of your Lord with wisdom and excellent admonition and argue with people in the best manner. Your Lord knows best who has gone astray from His Way and who is Rightly guided.
Allah says in the Holy Quran Chapter 3 Surah Ale Imran verse 110:
You (muslims) are the best community which has been raised for the guidance of mankind. You enjoin what is right, forbid what is evil, and you all believe in Allah Alone.
Whatever one believes to be good, or right, or profitable for oneself, it is only natural and an extension of ones love that one will invite ones loved ones to that good; similarly whatever one believes to be evil or harmful, it is only natural that one will warn ones loved ones to stay away from that evil.
Thus it is nothing but a natural extension of the belief of a true believers that he will strive to invite his loved ones and all those who are willing to listen to good caution to the eternal and everlasting Gardens of Paradise and warn them regarding the insurmountable evil of Hell Fire.
If one genuinely believes in the concept of the Hereafter, Paradise and Hell, it is not conceivable that he/she will keep this secret to himself; and if one keeps this secret to himself, either his claim to love his fellow brothers/sisters is hollow or he should re-check and re-examine the truth of his status of belief in the Hereafter!
What are the losses if one wont give dawah
The absolute biggest loss of not propagating the Truth to others would be to imply that one himself does not truly believe in the Promises of their Lord Creator and the inevitable concept of the Hereafter, Paradise and Hell; for if one indeed truly believed, it is neither possible, nor conceivable, nor natural that one would keep this as a secret to himself and not warn others of the impending trial and tribunal of the Lord Most Majestic!
Allah Says in the Holy Quran Chapter 7 Surah Aaraaf verse 164:
164 When some of them said: "why do ye preach to a people whom Allah will destroy or visit with a terrible punishment?" Said the preachers: "to discharge our duty to our Lord and perchance they may fear Him."
The second major loss would be that one would have to account and present a reasonable excuse in the Majestic Presence and Court of his Lord on that Tumultuous Day of Judgment for his in-action in fulfilling this obligatory duty that the Lord Most High had laid upon him!