"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." 1 Tim 4:12; NKJV.
The apostle Paul exhorted his spiritual son Timothy to demonstrate the Christian life to Christians' under his leadership. Timothy was to do this in his God directed speech to them, by how he lived his life before them, in the way God's loved flowed through him, the demonstration of a life directed by the Spirit and by his faith, and sinless, moral purity!
In Titus 2:10 we are exhorted to "adorn" the doctrine of God. We could say we are to adorn, make attractive, beautify and decorate the word of God by showing its powerful working in our lives to the world around us, wow! Folks do watch and listen to us Christians', what do they see and hear? Food for thought.