Matthew Henry on 1 Peter 1:13-16

As the traveller, the racer, the warrior, and the labourer, gathered in their long and loose garments, that they might be ready in their business, so let Christians do by their minds and affections. Be sober, be watchful against all spiritual dangers and enemies, and be temperate in all behaviour. Be sober-minded in opinion, as well as in practice, and humble in your judgment of yourselves. A strong and perfect trust in the grace of God, is agreeable with best endeavours in our duty. Holiness is the desire and duty of every Christian. It must be in all affairs, in every condition, and towards all people. We must especially watch and pray against the sins to which we are inclined. The written word of God is the surest rule of a Christian's life, and by this rule we are commanded to be holy every way. God makes those holy whom he saves.