These things command and teach.
Let no one despise your youth, but be an example to the believers in word, in conduct, in love, in spirit, in faith, in purity.
References for 1 Timothy 4:12
Till I come, give attention to reading, to exhortation, to doctrine.
Do not neglect the gift that is in you, which was given to you by prophecy with the laying on of the hands of the eldership.
Meditate on these things; give yourself entirely to them, that your progress may be evident to all.
Take heed to yourself and to the doctrine. Continue in them, for in doing this you will save both yourself and those who hear you.