Let no one have reason to despise thee for thy youth. To prevent this, Be a pattern in word — Public and private. In spirit — In your whole temper. In faith — When this is placed in the midst of several other Christian graces, it generally means a particular branch of it; fidelity or faithfulness.
Related Commentaries of 1 Timothy 4:12
1 Timothy 4:12
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.