Proverbs 6:18

An heart that deviseth wicked imaginations
Or, "thoughts of wickedness" ^F5; which are framed and formed in the heart: and this being the source and fountain of all wickedness, is placed in the midst of these hateful and abominable things; (See Gill on Proverbs 6:14); evil thoughts and designs, both against God and men, are intended, which are forged and fabricated in the wicked heart of man; and may respect the depths of Satan in the antichristian beast of Rome, ( Revelation 2:24 ) ; feet that be swift in running to mischief;
to commit all manner of sin with greediness, especially murder; see ( Proverbs 1:16 ) .