You will make them as a blazing oven when you appear. The LORD will swallow them up in his wrath, and fire will consume them.
PSALM 21. This psalm contains a public and solemn thanksgiving for the prosperous and happy condition of the king. Its subject is almost the same with that of the preceding. “What was anticipated in the preceding psalm, the present poem appears to celebrate as having been achieved.” — Drake’s Harp of Judah.
Commenting on Psalm 21:1-13
"Thou shalt make them as a fiery oven in the time of thine anger." They themselves shall be an oven to themselves, and so their own tormentors. Those who burned with anger against thee shall be burned by thine anger. The fire of sin will be followed by the fire of wrath.
The psalmist, having taught his people to look back with joy and praise on what God had done for him and them, here teaches them to look forward with faith, and hope, and prayer, upon what God would further do for them: The king rejoices in God (Psa 21:1), and therefore we will be thankful; the king trusteth in God (Psa 21:7), therefore will we be encouraged.
Commenting on Psalm 21:7-13