Goldsworthy on Biblical Theology

A quote from Graeme Goldsworthy's According to Plan, which was used as one of the textbooks for the Biblical Hermeneutics class that I took under Dr. Stephen Wellum:

Theology is not just knowing about God, but knowing him. To know him we need to be restored to friendship with him. In other words, we do biblical theology as Christians, not as neutral observers. Through the preaching of the gospel we have been brought to faith in Jesus Christ. Christ conquers our rebellious hearts and minds so that we worship him as Lord. Our only knowledge of Christ comes through Scriptures, and they give a united testimony to him. Christ is proclaimed as the one who reveals God to us; he is the Word of God. The Bible is the book about Christ that is inspired by the Holy Spirit. God has ensured that the Bible gives an infallible testimony to Christ. Biblical theology thus centers on Jesus Christ as the revealer and savior. To understand the Bible, we begin at the point where we first came to know God. We begin with Jesus Christ, and we see every part of the Bible in relationship to him and his saving work. This is as true of the Old Testament as it is of the New.