How can we know if our faith is an optional add-on or the defining reality of our lives? How can we tell if it’s counterfeit or real? How can we know that we truly know God? Religious experience isn’t the answer, being raised to believe a certain set of values isn’t the answer, gathering enough people around us who sound like us isn’t the answer. John says, “This is how we know” and lays out a test that both reveals and comforts.
