Matthew 7:16-18 NIV

16 By their fruit you will recognize them.1 Do people pick grapes from thornbushes, or figs from thistles?2

References for Matthew 7:16

17 Likewise every good tree bears good fruit, but a bad tree bears bad fruit.
18 A good tree cannot bear bad fruit, and a bad tree cannot bear good fruit.3

References for Matthew 7:18