Grudem on why we should study theology with helps for others

From page 35 of Systematic Theology

We need to be thankful that God has put teachers in the church ("And God has appointed in the church first apostles, second prophets, third teachers . . ." [1 Cor. 12:28]. We should allow those with gifts of teaching to help us understand Scripture. This means that we should make use of systematic theologies and other books that have been written by some of the teachers that God has given to the church over the course of its history. It also means that our study of theology should include talking with other Christians about the things we study. Among those with whom we talk will often be some with gifts of teaching who can explain biblical teachings clearly and help us to understand more easily. In fact, some of the most effective learning in systematic theology courses in colleges and seminaries often occurs outside the classroom in informal conversations among students who are attempting to understand Bible doctrines for themselves.