Not a huge fan of the term essential and non-essential doctrines. If God gives us a doctrine it's essential.
It reminds me of this coined phrase that is not biblical, attributed to Augustine and Wesley: "In essentials, unity; in non-essentials, liberty; in all things charity."
ALL doctrine in all 66 books is essential.
2 Timothy 3:10-17 NKJV
The Man of God and the Word of God
[SUP]10 [/SUP]But you have carefully followed my doctrine, manner of life, purpose, faith, longsuffering, love, perseverance, [SUP]11 [/SUP]persecutions, afflictions, which happened to me at Antioch, at Iconium, at Lystra—what persecutions I endured. And out of them all the Lord delivered me. [SUP]12 [/SUP]Yes, and all who desire to live godly in Christ Jesus will suffer persecution. [SUP]13 [/SUP]But evil men and impostors will grow worse and worse, deceiving and being deceived. [SUP]14 [/SUP]But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them, [SUP]15 [/SUP]and that from childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus.
[SUP]16 [/SUP]All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, [SUP]17 [/SUP]that the man of God may be complete, thoroughly equipped for every good work.