Since Christians are called to lay down their lives and suffer for Christ's sake, how we serve other believers (the Church/His Bride) is a clear representation of our faithfulness.
Despite living in an age where end times predictions abound, the Bible is clear that even Jesus and the angels did not know the hour of God's return. Instead, we are to live in anticipation, always ready, not leaving anything for tomorrow.
The book of Judges makes it painfully obvious that the greatest of heroes will shipwreck their lives every time when trusting in their own strength and not in the solid foundation of God.
Everyone can be hypocritical, especially Christians. We aren't called to remain that way, though. Jesus explains how our standards should call us to a better, more loving way.