15 He made a pit, and hollowed it out, and has falledn into the hole which he made [before the trap wa completed].
16 His mischief shall fall back in return upon his own head, and his violence come down [with the loose dirt] upon his own scalp. (Psalm 7:14-16). [Amplified Bible].
IV. Judgment of the Guilty (7:14-16)
14-16 Evil is metaphorically portrayed in these verses in the language of conception and birth. The wicked are filled with evil, as a pregnant woman about to give birth. Once wickedness is born, it grows into "trouble" and "violence" (cf. Mark 7:21-22; James 1:14-15). The certainty of judgment (vv.12-13) and the prevalence of evil find their point of contact in the doctrine of the retribution of evil (cf. Proverbs 26:27; Matthew 26:52).
[NIV BIBLE COMMENTARY Volume I: Old Testament].
JESUS IS LORD.