Thoughts are sins!  The law judges them, rebukes a man for them, and therefore they are transgressions of the law.  Thoughts are capable of pardon, they must be pardoned if we are to be saved, which argues the multitudes of God’s mercies, for thoughts are so infinite, thoughts are to be repented of.  And a man is never truly and thoroughly wrought on until his “every thought is brought into obedience,” which argues that they are naturally rebellious and contrary to grace.  (Thomas Goodwin; 1600-1679)