All who believe in the Son of God know that this is true. Those who don't believe this are actually calling God a liar because they don't believe what God has testified about his Son.
And this is what God has testified: He has given us eternal life, and this life is in his Son.
So whoever has God's Son has life; whoever does not have his Son does not have life.
I write this to you who believe in the Son of God, so that you may know you have eternal life.
Scripture quotations marked NLT are taken from the Holy Bible, New Living Translation, copyright 1996. Used by permission of Tyndale House Publishers, Inc., Wheaton, Illinois 60189. All rights reserved. (New Living Translation - The Bible Online)