Daniel 12:10
Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.

Matthew 7:16
Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?

Romans 1:28
And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;

Bitter and poisonous fruit Jonathan Edwards Sinners In The Hands of an Angry God.