There are some things which are not revealed in the Word concerning the circumstances of the worship of God or the government of the church, but are left to be ordered by the light of nature (i.e., common sense) and Christian prudence (wisdom). These are things like the time of worship on The Lord's Day, the type of building or place to worship, how long the service will be, beamer screen or not, or the finances of the church. These are things which the Scripture does not directly or indirectly speak about but are left to Christian wisdom and common sense. Nonetheless, the general rules of the Word are still to be observed in these matters. These are not to be disconnected from the Word just because they are not directly addressed by the Word. See chapter 22 about the elements and circumstances of worship.
The Sufficiency of Scripture
To say that Scripture is sufficient is not to say that it speaks on every topic imaginable or that it tells us everything that we should do and everything which we should not. Rather, the sufficiency of Scripture is defined as Scripture containing everything necessary that God wanted us to know about salvation, faith, and the walk of obedience. Whatever God had deemed necessary for His people to know, He has written for our benefit in Scripture. The primary passage in Scripture which teaches the sufficiency of Scripture is 2 Timothy 3:16:
2Tim. 3:16-17 All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, 17 that the man of God may be complete, equipped for every good work.
Here, the Apostle Paul gives us a great and necessary-to-know description of Holy Writ. The Scriptures, all of it, is profitable for teaching us the will of God; for reproving and criticizing us and our actions, because in them God has revealed His perfect Law of righteousness. The Scripture is profitable for correcting us, leading us in the way which we should go and teaching us to walk in the path of the Lord. And finally, the Scripture teaches us righteousness and how we should live before the face of God. Going a verse before, Paul said to Timothy that “the sacred writings...are able to make you wise for salvation through faith in Christ Jesus” (2Tim. 3:15). Therefore, in the Scripture as a whole is found the way of righteousness, the way of salvation and the way of obedience. The purpose of God in giving the Scripture is that the man of God may be complete, not lacking anything, but rather be ready and have everything that he needs for every good work. God has given the Scriptures as a blessing to His people and as the way through which He speaks to His Church. Furthermore, He has given the Scriptures so that we may know everything that He wants us to know about Him, the way of salvation and obedience. If the Bible doesn’t speak about a particular issue, I believe we may still discern a general principle from Scripture which we should apply to all areas of life. The Bible was not written to address every issue directly, though, the person who has a biblical worldview will see the world differently in all areas. Sinclair Ferguson writes, “Everything I need to learn in order to live to the glory of God and enjoy him for ever I will f...