18 Bible Verses about doctrine, Purpose of

He must correct those who are in opposition with courtesy and gentleness in the hope that God may grant that they will repent and be led to the knowledge of the truth [accurately understanding and welcoming it],

Pay close attention to yourself [concentrate on your personal development] and to your teaching; persevere in these things [hold to them], for as you do this you will ensure salvation both for yourself and for those who hear you.

but these have been written so that you may believe [with a deep, abiding trust] that Jesus is the Christ (the Messiah, the Anointed), the Son of God; and that by believing [and trusting in and relying on Him] you may have life in His name.

For since the world through all its [earthly] wisdom failed to recognize God, God in His wisdom was well-pleased through the foolishness of the message preached [regarding salvation] to save those who believe [in Christ and welcome Him as Savior]. For Jews demand signs (attesting miracles), and Greeks pursue [worldly] wisdom and philosophy, but we preach Christ crucified, [a message which is] to Jews a stumbling block [that provokes their opposition], and to Gentiles foolishness [just utter nonsense], read more.
but to those who are the called, both Jews and Greeks (Gentiles), Christ is the power of God and the wisdom of God.

But in your hearts set Christ apart [as holy—acknowledging Him, giving Him first place in your lives] as Lord. Always be ready to give a [logical] defense to anyone who asks you to account for the hope and confident assurance [elicited by faith] that is within you, yet [do it] with gentleness and respect. And see to it that your conscience is entirely clear, so that every time you are slandered or falsely accused, those who attack or disparage your good behavior in Christ will be shamed [by their own words].

But as for you, continue in the things that you have learned and of which you are convinced [holding tightly to the truths], knowing from whom you learned them, and how from childhood you have known the sacred writings (Hebrew Scriptures) which are able to give you the wisdom that leads to salvation through faith which is in Christ Jesus [surrendering your entire self to Him and having absolute confidence in His wisdom, power and goodness].

[For my hope is] that their hearts may be encouraged as they are knit together in [unselfish] love, so that they may have all the riches that come from the full assurance of understanding [the joy of salvation], resulting in a true [and more intimate] knowledge of the mystery of God, that is, Christ, in whom are hidden all the treasures of wisdom and knowledge [regarding the word and purposes of God]. I say this so that no one will deceive you with persuasive [but thoroughly deceptive] arguments.

All Scripture is God-breathed [given by divine inspiration] and is profitable for instruction, for conviction [of sin], for correction [of error and restoration to obedience], for training in righteousness [learning to live in conformity to God’s will, both publicly and privately—behaving honorably with personal integrity and moral courage]; so that the man of God may be complete and proficient, outfitted and thoroughly equipped for every good work.

The law of the Lord is perfect (flawless), restoring and refreshing the soul;
The statutes of the Lord are reliable and trustworthy, making wise the simple.

The precepts of the Lord are right, bringing joy to the heart;
The commandment of the Lord is pure, enlightening the eyes.

And [His gifts to the church were varied and] He Himself appointed some as apostles [special messengers, representatives], some as prophets [who speak a new message from God to the people], some as evangelists [who spread the good news of salvation], and some as pastors and teachers [to shepherd and guide and instruct], [and He did this] to fully equip and perfect the saints (God’s people) for works of service, to build up the body of Christ [the church]; until we all reach oneness in the faith and in the knowledge of the Son of God, [growing spiritually] to become a mature believer, reaching to the measure of the fullness of Christ [manifesting His spiritual completeness and exercising our spiritual gifts in unity]. read more.
So that we are no longer children [spiritually immature], tossed back and forth [like ships on a stormy sea] and carried about by every wind of [shifting] doctrine, by the cunning and trickery of [unscrupulous] men, by the deceitful scheming of people ready to do anything [for personal profit].

For everyone who lives on milk is [doctrinally inexperienced and] unskilled in the word of righteousness, since he is a spiritual infant. But solid food is for the [spiritually] mature, whose senses are trained by practice to distinguish between what is morally good and what is evil.

“For as the rain and snow come down from heaven,
And do not return there without watering the earth,
Making it bear and sprout,
And providing seed to the sower and bread to the eater,

So will My word be which goes out of My mouth;
It will not return to Me void (useless, without result),
Without accomplishing what I desire,
And without succeeding in the matter for which I sent it.

“For you will go out [from exile] with joy
And be led forth [by the Lord Himself] with peace;
The mountains and the hills will break forth into shouts of joy before you,
And all the trees of the field will clap their hands.
read more.

“Instead of the thorn bush the cypress tree will grow,
And instead of the nettle the myrtle tree will grow;
And it will be a memorial to the Lord,
For an everlasting sign [of His mercy] which will not be cut off.”

He said to me, “Son of man, eat what you find [in this book]; eat this scroll, then go, speak to the house of Israel.” So I opened my mouth, and He fed me the scroll. He said to me, “Son of man, eat this scroll that I am giving you and fill your stomach with it.” So I ate it, and it was as sweet as honey in my mouth.

We proclaim Him, warning and instructing everyone in all wisdom [that is, with comprehensive insight into the word and purposes of God], so that we may present every person complete in Christ [mature, fully trained, and perfect in Him—the Anointed].

He must hold firmly to the trustworthy word [of God] as it was taught to him, so that he will be able both to give accurate instruction in sound [reliable, error-free] doctrine and to refute those who contradict [it by explaining their error].

If you point out these instructions to the brothers and sisters, you will be a good servant of Christ Jesus, constantly nourished [through study] on the words of the faith and of the good [Christian] doctrine which you have closely followed.

Keep and follow the pattern of sound teaching (doctrine) which you have heard from me, in the faith and love which are in Christ Jesus. Guard [with greatest care] and keep unchanged, the treasure [that precious truth] which has been entrusted to you [that is, the good news about salvation through personal faith in Christ Jesus], through [the help of] the Holy Spirit who dwells in us.

The things [the doctrine, the precepts, the admonitions, the sum of my ministry] which you have heard me teach in the presence of many witnesses, entrust [as a treasure] to reliable and faithful men who will also be capable and qualified to teach others.