1 Timothy 4:10-13

That is why we labour and strive, because we have put our hope in the living God, who is the Saviour of all people, and especially of those who believe. Command and teach these things. Don’t let anyone look down on you because you are young, but set an example for the believers in speech, in conduct, in love, in faith and in purity. Until I come, devote yourself to the public reading of Scripture, to preaching and to teaching.