"For God so loved the world, He gave HIs only Son..."
And this is the reason we recognize Good Friday. Because the greatest gift in the history of mankind was given to us by our creator. Our Father in Heaven sent his one and only son to earth to bear the sin of the world on a cross. He died for you, and for me.
"That whosoever should believe in Him should not perish..."
This is that is asked of us in return. BELIEVE. It's that simple. There are no other rules, or qualifications. The sacrifice Christ made on the cross was not reserved only for the wealthy, or the higher class. And it doesn't come with any strings attached. Simply BELIEVE God loves you this much, and you will not die.
"But have eternal life."
And the greatest sacrifice ever made, brings the most wonderful promise ever made. The promise that our lives on this earth are only a glimpse in the eye of eternity. Our time on earth will come and go before we know it, but this world is not our final destination. These words of John 3:16 are the promise to those who BELIEVE that eternal life with with our Savior in Heaven is waiting.
Don't forget the gift you've been given on Good Friday.