Tripp seems to be getting at the scriptural idea of good fruit.
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. (Matthew 7:18-20 ESV)
As we seek to grow in maturity, and as we assess the maturity of potential mates — what fruits should we be looking for? ... N.T. Wright explores the concept of spiritual fruit at length in his After You Believe: Why Christian Character Matters.
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