First, ignorance of the Bible is the fundamental information problem in the church. If we do not know the Bible, how are we to know how to proceed? We move forward not according to God's plan, but according to our plans, as we determine them. We may even dress them up with a verse here or a slogan there, but if we do not know the Story of God from the Bible we will not be a biblical church. We will be merely a social club with a religious focus, missing God's message and mission.
There is no substitute for knowing the word of God. Whether we read it, listen to it, teach it, or listen to trusted teachers teach it, we must saturate ourselves with the message that God left us. It is in the Bible that we find the Story of God and the apostolic teaching that moves us forward.
Second, selfishness demonstrates the fundamental relational problem within the church. It is connected to ignorance of the Bible. If we do not know what God desires, then we focus on what we want--what songs we want; how we want the building to look; what preferences we have for sermon styles; what ministries we want or don't want; and even what kind of people we want or don't want around. All of this is selfish. All of it is sin.
As we learn the Story of God in the Bible, we learn how much love he had for us. This changes us to love others more. When we love others more, we love ourselves (our own agenda, attitudes, etc.) less. Selfishness is transformed into selflessness.
Where are you at with these two problems? What will you do to grow in knowledge of God's Story in the Bible? In what ways are you selfish? How do you need to grow to become more selfless?