[smvoice]

No. Most of the problem is that people have rejected their own God-given ability to understand His word in favour of letting someone else tell them what God is saying. Of course you know that without the indwelling of the Holy Spirit, the truth is impossible to understand. "But God hath revealed them unto us by His Spirit: for the Spirit searcheth all things, yea, the deep things of God." 1 Cor. 2:10.

I'm searching for any Scripture that would tell me that the Magisterium or the Pope would be necessary for my understanding of His word, or my Christian life. I cannot locate a single one. But I DID locate this:

"All SCRIPTURE is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, throughly furnished unto all good works." 2 Tim. 3:16,17.

Now if all I need is Scripture, and the Holy Spirit indwelling me leading me in His word of truth, tell me again WHY I need the Magisterium.

[Jim Noble]

Now if all I need is Scripture, and the Holy Spirit indwelling me leading me in His word of truth

So, prior to 1500 or so, no one was saved?

[BenKenobi]

Because the bible teaches that the magisterium has an office assigned to it by Christ.

As for ‘all scripture is useful’, what scripture is he talking about?

If people decide what is and isn’t scripture, then the Word of God is lost, and that is exactly what has happened.