NET
12 Let no one look down on you because you are young, but set an example for the believers in your speech, conduct, love, faithfulness, and purity.
Darby
12 Let no one despise thy youth, but be a model of the believers, in word, in conduct, in love, in faith, in purity.
KJV
12 Let no man despise thy youth; but be thou an example of the believers, in word, in conversation, in charity, in spirit, in faith, in purity.