Allah swt say in Quran;
[019:097] We have made this (Quran) easy for you, in your own language, in order that you may give the glad tidings to the pious and the God-fearing. With it, you may warn those that are belligerent.Learning Quran is the best. it is the best knowledge one can have. Teaching it is also the best act. It is because, islam is not like other religions. Other religions got corrupted and falsified because their clerics could play with the commandments of Allah out of the greed for wealth. And because the laymen did not bother to know what their religious text book had to say to them. This is why, today, you may find too few people in other religions who are actually interested to know about their religion. But islam is very kind. Islam is not for clerics, rather it is for all. Every muslim is bound to read and understand the book of Allah and to spread the knowledge. And it is also binding upon muslims to never play with the words of Allah swt. Because the previous nations were dishonest, they tempered their books. Allah swt made promise to protect Quran Himself. This is why nobody could ever alter this book. Allah swt say in Quran;
[015:001] A. L. R. These are the Ayats of Revelation,- of a Quran that makes things clear.So, Quran actually makes things clear. There is no contradiction in Quran. It is self explanatory because it does not leave anything uncleared. In another place, Allah swt say;
[007:204] When the Quran is read, listen to it with attention, and hold your peace: that ye may receive Mercy.It is so because, this clear message from Allah swt cannot be swallowed by satan. He knows that such a thing can only come from God, so he tries to divert man's attention. For this, Allah swt tells us to be attentive in gaining the knowledge of Quran. Once, Quran is read, now comes the part to act upon in. if satan could not divert your attention, then he surely would try to turn you away from quran. This is why, Allah swt tell us to hold our peace and to be steadfast on it.
Prophet Muhammad pbuh gave glad tidings to those who teach others the knowledge of Quran. In a sahih hadith, Muhammad pbuh said;
“Do not wish to be like others except in two cases; (the first is) a person whom Allah swt has given wealth and he spends it righteously, and the second is) a person whom Allah has given wisdom ( the knowledge of Quran ) and he acts upon it and teaches it.” (sahih bukhari)thus, reading is not enough, but understanding it and acting upon it important. And then comes the point of teaching. Remember, if a person invites others towards hidayah, his own hidayah comes his way.