I have a decent presence on Twitter, and receive interaction notifications almost every day. They typically say something like "@FairICBaptist followed you" or "@BackRowBaptist favorited one of your Tweets".
In case you are not on Twitter, when you see a Tweet that you like, you can "favorite" it so that you can find it again easily. It could be compared to bookmarking a verse in your Bible, so that you can read it again in the future. Psalm 119:11 tells us "Your word I have treasured in my heart, that I may not sin against You."
However, there is another option when you find a great Tweet. You can Re-Tweet it to YOUR followers. That is, you have a different circle of influence than the person who originally made the statement. The only way someone may hear that wisdom (or joke) is if you share it with them. Reading the Bible is the exact same. You may be the only way that your co-workers, neighbors or friends ever get biblical wisdom poured into their lives.
There are multiple verses that state this, but one of my favorites is my life-verse, Ezra 7:10 "For Ezra had set his heart to study the law of the LORD and to practice it, and to teach His statutes and ordinances in Israel." In Psalm 51:13, David tells us "Then I will teach transgressors Your ways, and sinners will be converted to You."
So, are you being selfish with God's word, or are you sharing it? Remember, you may be the messenger God desires to use to speak Truth into someone's life.