The Westminster Confession of Faith, along with the Shorter and Larger Catechisms (together referred to as the Westminster Standards), form the standard of doctrine that we hold to as a church.
We believe that this Confession provides an accurate summary of the Bible's teaching. While the Westminster Standards are not infallible, we believe they are a faithful interpretation of biblical doctrine. If you would like an in depth view of our beliefs as a church (and as a denomination) then the Westminster Standards are the place to start.
There are many excellent commentaries on the Westminster Confession of Faith that can help you better understand its content. Perhaps the best of the recent commentaries on the Confession is Confessing the Faith by Dr. Chad Van Dixhoorn.