The Sufficiency of Scripture for the Church

I just started reading (again) The Deliberate Church by Mark Dever and Paul Alexander. As a pastor I want to make sure I am leading my flock for the glory of God to believe and apply the gospel and the truth found in the Scriptures in all areas of our church and life. This quote in the "Foreword" is why I'm reading this book:

In whatever we do, we want to be careful about allowing God's Word to set our trajectory, power our progress, and govern our methods. From our preaching and evangelism, to the way we take in new members; from our discipleship and discipline practices, to our leadership models; from the structure of our Sunday morning services, all the way down to the agenda of the elders' meeting, we want our procedures to reflect reliance on the biblical Gospel, submission to its claims, and awareness of its implications for our corporate life together.