σαπρός

Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.

For a good tree bringeth not forth corrupt fruit; neither doth a corrupt tree bring forth good fruit.

Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.

A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.

Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.

Which, when it was full, they drew to shore, and sat down, and gathered the good into vessels, but cast the bad away.