Resurrection is one of most importance to the Christian faith.  Without the resurrection our faith is in vain and we are still in our sins.  But, because Christ has risen we can have a blessed assurance that we are completely forgiven and loved by God.  Jesus defeated death, sin and Satan when He resurrected.  Therefore, He has the authority and ability to save sinners completely.  Even when the enemy or our own feelings cause fear and doubt, we can be assured of His love for us.  Even before we came to Him, Jesus already knew of all the sins and failures we would commit, but yet He still chose to save us and love us.  And we have this blessed assurance because He resurrected on the third day, so be assured of His love for you.  

Passage: John 21:1-17