Matthew 7:17-20
7:17 In the same way, every good tree bears good fruit, but the bad 1 tree bears bad fruit.
7:18 A good tree is not able to bear bad fruit, nor a bad tree to bear good fruit.
7:19 Every tree that does not bear good fruit is cut down and thrown into the fire.
7:20 So then, you will recognize them by their fruit.
1 tn Grk “rotten.” The word σαπρός, modifying “tree” in both v. 17 and 18, can also mean “diseased” (L&N 65.28).