There are three firm teachings of the Lord of life: hope, which is the beginning and end of out faith; righteousness, which is the beginning and end of judgment; and love, which is a testament to out joy and gladness in upright deeds.
    For through the prophets the Master has made known to us what has happened and what now is; and he has given us the first fruits of the taste of what is yet to be.  And as we see that each and everything has happened just as he indicated, we should make a more abundant and exalted offering in awe of him.

Hope gives us the strength to keep up with our spiritual growth and with spreading the word despite periods of difficulty.
Righteousness gives us the strength to avoid falling into Satan's traps.  Or those of men who serve him, whether intentionally or unintentionally.
Love.  What more can be said about the importance of love?  It is only because of his love for us that God continues to offer us a chance to redeem ourselfs, though now that the end times are here, that chance will soon end.

Jesus helped his followers understand what was taking place in the physical world and in the spiritual world (heaven).  He also gave them prophecies, many of which were never written down so we don't know exactly what they were.  Barnabus though assures us that they happened just as Jesus and other prophets predicted and will continue to do so, assuming of course that you understand the true meaning of those prophecies.