You ever wonder how the appraisers on The Antique Road Show are able to spot the fake.  Well . . . it is because they know the signs of authenticity.  If the signs are there, the article is genuine.  If the signs aren’t . . . you know the rest.  John says the same thing is true about the believer.  Genuine believers will exhibit marks of authenticity.  One of those marks will be sincere, sacrificial, and whole-hearted love.  Join us as we examine these few verses and see if this type of love marks our lives!   Sermon originally preached on March 17, 2013.