In this Church Age, each and every individual believer is a priest to the Father through our High Priest, the Lord and Savior Christ Jesus, the Head of the Church.
God, by His Will has a Plan for every believer and has predestined the logistics for that Plan. We don't understand what He wants us to do until we understand His Will and that is reveals to us in Scripture. By studying Scripture through faith in Him, He is able to first hand grow our understanding of Him, His Will, and how we are to work to be when He wants us and perform per His Will.
While we remain in fellowship with Him, we find ourselves in the right place, at the right time, to perform good works through His Will, by His methods, as good stewards of what He has provided us. Our placement isn't always by worldly criteria, and some have argued God enjoys using those with little to no worldly power to implement His victories in the angelic conflict.
In order to understand what His Plan is for us, we must first understand what He reveals to us and mature in that understanding, knowledge, and wisdom. That only comes by faith, which is matured as Bible doctrine in our thinking and continually residing in it for further sanctification of our thinking by Him.
Sola Scriptura as a policy is a safe place to begin. By means through faith in Him, if you have advance beyond Bible doctrine, already know and abide by all things within Scripture, are able to resist temptation and continue with an even more fruitful life, then I think it is wonderful that God reveals Himself to you even more than what He has already provided in Scripture. For myself, I continue to grow in Him through faith in Christ and by the Word of God which He provides to us in Scripture so I may continue to abide in Him with something veritable. Until He has built me beyond that point, I know He has provided Scripture for me to use to unserstand His Word and grow in Him, so Sola Scriptura for myself is a veritable beginning.
There are also some doctrinal arguments regarding cessationism which indicate nobody receives special revelation after the completion of the canon of Scripture, so if somebody thinks they have Mastered Scripture and now advance to other revelation, it might be the case that they never understood Scripture in their human spirit as they might think they have in their soul.
Who says that? Paul? Christ never taught anything like that. Sorry. That's not even how the Church during Paul's time was organized.
God, by His Will has a Plan for every believer
What "Plan?" Where does the Bible mention any God's "Plan?" God is transcendent, all-knowing and needs no planning. And everything God intended to do has already been done. Your God is traveling through time with us.
We don't understand what He wants us to do until we understand His Will and that is reveals to us in Scripture
And how do we know when and what He "wants" us to understand? When it makes sense to us?. Sorry, that is a formula for a man-centered and man-made 'church.'
In order to understand what His Plan is for us, we must first understand what He reveals to us and mature in that understanding, knowledge, and wisdom. That only comes by faith, which is matured as Bible doctrine in our thinking and continually residing in it for further sanctification of our thinking by Him. Every other religion uses the same "reasoning" and their own "holy" books as the basis.
Sola Scriptura as a policy is a safe place to begin
No it's not because it is not even in the Bible. It's a man-made superstition.
Until He has built me beyond that point, I know He has provided Scripture for me to use to understand His Word and grow in Him, so Sola Scriptura for myself is a veritable beginning. The Church pre-existed the Christian canon, even the New Testament. So, nothing could be further from the truth. The life of the Church (liturgical life) existed before the NT was completed.