J.I. Packer and Gary Parrett write:

‘One of the most important arguments for ministries of catechesis today derives from the simple fact that believers have been commanded to teach others catechetically.’

In Ephesians 6:4, fathers are urged to bring up their children ‘in the discipline and instruction of the Lord.’

In the Pastoral Epistles, we find numerous exhortations:

“Charge certain persons not to teach any different doctrine, nor devote themselves to myths.” (1 Tim. 1:3–4)

“If you put these things before the brothers, you will be a good servant of Christ Jesus, being trained in the words of the faith and of the good doctrine that you have followed.” (1 Tim. 4:6)

“Command and teach these things.” (1 Tim. 4:11)

“Devote yourself to the public reading of Scripture, to exhortation, to teaching.” (1 Tim. 4:13)

“Keep a close watch on yourself and on your teaching. Persist in this, for by so doing you will save both yourself and your hearers.” (1 Tim. 4:16)

“Teach and urge these things. If anyone teaches a different doctrine and does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and understands nothing.” (1 Tim. 6:2–4)

“O Timothy, guard the deposit entrusted to you.” (1 Tim. 6:20)

“Follow the pattern of the sound words that you have heard from me, in the faith and love that are in Christ Jesus. By the Holy Spirit who dwells within us, guard the good deposit entrusted to you.” (2 Tim. 1:13–14)

“What you have heard from me in the presence of many witnesses entrust to faithful men who will be able to teach others also.” (2 Tim. 2:2)

“Remind them of these things, and charge them before God not to quarrel about words.… Do your best to present yourself to God as one approved, a worker who has no need to be ashamed, rightly handling the word of truth.” (2 Tim. 2:14–15)

“The Lord’s servant must not be quarrelsome but kind to everyone, able to teach, patiently enduring evil, correcting his opponents with gentleness.” (2 Tim. 2:24–25)

“Preach the word; be ready in season and out of season; reprove, rebuke, exhort, with complete patience and teaching. For the time is coming when people will not endure sound teaching.” (2 Tim. 4:2–3)

“But as for you, teach what accords with sound doctrine.” (Titus 2:1)

“Show yourself in all respects to be a model of good works, and in your teaching show integrity, dignity, and sound speech that cannot be condemned.” (Titus 2:7–8)

“Declare these things; exhort and rebuke with all authority.” (Titus 2:15)

“Remind them to be submissive to rulers and authorities, to be obedient, to be ready for every good work.” (Titus 3:1)

Grounded in the Gospels: Building Believers the Old-Fashioned Way, chapter 2.