TSK · Matthew 7:16

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

Can a fig tree, my brethren, yield olives, or a vine figs? Neither [can] salt water yield sweet.

But these rail at whatsoever things they know not: and what they understand naturally, like the creatures without reason, in these things are they destroyed.