You can tell what they are by what they do. No one picks grapes or figs from thorn bushes.
The good or bad that children do shows what they are like.
A good tree produces only good fruit, and a bad tree produces bad fruit. You can tell what a tree is like by the fruit it produces.
You can tell who the false prophets are by their deeds.
God's Spirit makes us loving, happy, peaceful, patient, kind, good, faithful,
Suppose someone disagrees and says, “It is possible to have faith without doing kind deeds.” I would answer, “Prove that you have faith without doing kind deeds, and I will prove that I have faith by doing them.”
Can a fig tree produce olives or a grapevine produce figs? Does fresh water come from a well full of salt water?
An old proverb says, “Only evil people do evil things,” and so I won't harm you.