The end of all things is at hand; therefore be self-controlled and sober-minded for the sake of your prayers. Above all, keep loving one another earnestly, since love covers a multitude of sins. Show hospitality to one another without grumbling. 1 Peter 4:7–9, ESV
Our sanctification is designed by God to transform us unto the image of Christ. The human heart before regeneration is clueless about the ways of God. The unregenerate heart can only comprehend the wisdom of the world. This ‘wisdom,’ such as it is, views the Christian calling as utter foolishness. Sadly, there are innumerable professing Christians in our time who claim that Jesus is their Saviour, but they cling to worldly comforts as they view the self-denied life as peculiar and only for Jesus freaks and fanatics.