1 and 2 Timothy are also found in the collection of Paul's letters. These two books seem to exemplify the different aspects of Church. First and foremost, God is the center. But then you have the deacons and overseers as well as widows, elders, and slaves. Then there is the tithing issue-love for money. The second letter takes more of an encouraging and challenging tone.
1 Timothy 4:12 is a prominent verse used in youth/college groups across the world. Sometimes it is the young who can truly witness to people and they can be the heart of the church at times. This definitely seems to fit the "upside-down" Kingdom that God has created. The young/childlike should have an easier time entering heaven than those that don't come to their faith in a child-like manner.
2 Timothy 3:16-17 are also verses worth commenting on. Here Paul makes the disclaimer that scripture is God-breathed and useful for teaching, rebuking, correcting, and training in righteousness. Basically-the scriptures are may be man made, but only through the breath of God...and they should be used to build the church up and hold it accountable.