1. The words, "I slept, and took rest; and rose, for the Lord will take me up," lead us to believe that this Psalm is to be understood as in the Person of Christ; for they sound more applicable to the Passion and Resurrection of our Lord, than to that history in which David's flight is described from the face of his rebellious son. And, since it is written of Christ's disciples, "The sons of the bridegroom fast not as long as the bridegroom is with them;" it is no wonder if by his undutiful son be here meant that undutiful disciple who betrayed Him. From whose face although it may be understood historically that He fled, when on his departure He withdrew with the rest to the mountain; yet in a spiritual sense, when the Son of God, that is the Power and Wisdom of God, abandoned the mind of Judas; when the Devil wholly occupied him; as it is written, "The Devil entered into his heart," may it be well understood that Christ fled from his face; not that Christ gave place to the Devil, but ...
Why. Let me know the enormity of my sins. All Israel follows Absalom, 2 Kings xv. 13. So all rose up against Christ. (Worthington)
The Church was assailed on all sides, (Calmet) and every soul must live in expectation of battle from innumerable enemies. Hebrew also, (Haydock) "How are they multiplied. "(Houbigant)
David is surprised at the sudden change, and adores the depth of God's judgments, which had been denounced unto him, 1 Kings xii. 10. (Calmet)
