This was Jesus point in Matthew 7:15-20. “Beware of false prophets, who come to you in sheep’s clothing but inwardly are ravenous wolves. You will recognize them by their fruits. Are grapes gathered from thornbushes, or figs from thistles? So, every healthy tree bears good fruit, but the diseased tree bears bad fruit. A healthy tree cannot bear bad fruit, nor can a diseased tree bear good fruit. Every tree that does not bear good fruit is cut down and thrown into the fire. Thus you will recognize them by their fruits."
Where are we professing faith that is not producing change? Could it be that our real problem is that we don't really believe? We believe abstractly, in our heads, but there is little or no "conviction."