Hi Strat,
A big amen, brother. My thoughts exactly.
Hi aspen,
Doctrine is in a different category completely. It is mentioned numerous times in the NT which makes it extremely important.
Paul was always being accused by the Jews of teaching a new religion, when in fact he was teaching that what had been prophesied to them had now come one major step closer into being. To Timothy he writes:
1 Timothy 6:3 If any man teach otherwise, and consent not to wholesome words, [even] the words of our Lord Jesus Christ, and to the doctrine which is according to godliness; 4 He is proud, knowing nothing, but doting about questions and strifes of words, whereof cometh envy, strife, railings, evil surmisings, 5 Perverse disputings of men of corrupt minds, and destitute of the truth, supposing that gain is godliness: from such withdraw thyself.
To the Romans he writes, right at the end of the whole epistle:
Romans 16:17 Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.
There is considerable benefit in discussing doctrine, to identify and pursue the focus given by Paul above.
2 Timothy 3:16 All scripture [is] given by inspiration of God, and [is] profitable for doctrine, for reproof, for correction, for instruction in righteousness:
Scripture has to be the starting point for determining doctrine, as takes us off all that man subtracted or added to God's simplicity.