Psalm 7:12-17 RSV

12 If a man does not repent, God will whet his sword; he has bent and strung his bow;
13 he has prepared his deadly weapons, making his arrows fiery shafts.
14 Behold, the wicked man conceives evil, and is pregnant with mischief, and brings forth lies.
15 He makes a pit, digging it out, and falls into the hole which he has made.
16 His mischief returns upon his own head, and on his own pate his violence descends.
17 I will give to the LORD the thanks due to his righteousness, and I will sing praise to the name of the LORD, the Most High.