1 Pet. 1:13-16
"Therefore gird up the loins of your mind, be sober, and rest your hope fully upon the grace that is to be brought to you at the revelation of Jesus Christ; as obedient children, not conforming yourselves to the former lusts, as in your ignorance; but as He who called you is holy, you also be holy in all your conduct, because it is written, "Be holy, for I am holy."

Of course Dad starts with the "what is the 'therefore' there for?" and he begins by pointing out that these words are what our response should be to our salvation.

The standard dress of the time was a robe with a belt which was used to pull the robe up and out of the way when a man was working. After we are saved, we are to get ready to use our minds for the Lord. Start thinking about what it means to be a Christian. Be serious about life. Apply yourself.

Our hope is in Jesus' return. Until He returns, we are to fight for Him, obeying Him fully.

And "be holy". We are to be set apart, different from the world, not going along with others who are acting against God. Let "all " of your conduct, from morning to night, be different, not conformed to former lusts.

PPP---- What did the French people call the stomach muscles of someone who hoarded money?

"Les Miserables"