How do you know if your heart is rooted in good or evil?
In Luke 6:43-45 Jesus gives us a simple test.
"A good tree can't produce bad fruit, and a bad tree can't produce good fruit. A tree is identified by its fruit. Figs are never gathered from thorn bushes, and grapes are not picked from bramble bushes. A good person produces good things from the treasury of a good heart, and an evil person produces evil things from the treasury of an evil heart. What you say flows from what is in your heart.
Ask God today to fill your heart with a treasury of good things - and then watch the good fruit grow.