This verse is the apostle's reminder to the church to prepare your minds for action, keep sober in spirit, fix your hope completely on the grace to be brought to you at the revelation of Jesus Christ. And from there he goes on to discuss the topic of holiness and our walk before the Lord. When you are only at home most of the time it is easy to think you may be exempt from this verse. But we must remember that it is imperative for us to stay sober in our walk as it is always before the Lord, not before man. Man will not ever be our judge - God is. For this reason it is just as important for us to walk holy before Him as for those who live a "normal" life!
We cannot let our circumstances wear us down to where we are lulled to spiritual sleep. Today, make an effort to stay sober in your spirit. Be ready to fight...live holy before Him!