(6) Dark and slippery.--See margin. Delitzsch supposes an allusion to the passage of the Red Sea, but the picture suggests rather the passage of some dangerous mountain pass in a raging storm. "The tracks in the limestone hills of Palestine are often worn as smooth as marble; comp. Psalm 73:18" (quoted from Kay, in the Speaker's Commentary).

Verse 6. - Let their way be dark and slippery; literally, darkness and slipperiness; i.e. let them fly along dark and slippery paths, where they cannot see their way, and will be sure to stumble and fall. And let the angel of the Lord persecute them; rather, pursue after them.

35:1-10 It is no new thing for the most righteous men, and the most righteous cause, to meet with enemies. This is a fruit of the old enmity in the seed of the serpent against the Seed of the woman. David in his afflictions, Christ in his sufferings, the church under persecution, and the Christian in the hour temptation, all beseech the Almighty to appear in their behalf, and to vindicate their cause. We are apt to justify uneasiness at the injuries men do us, by our never having given them cause to use us so ill; but this should make us easy, for then we may the more expect that God will plead our cause. David prayed to God to manifest himself in his trial. Let me have inward comfort under all outward troubles, to support my soul. If God, by his Spirit, witness to our spirits that he is our salvation, we need desire no more to make us happy. If God is our Friend, no matter who is our enemy. By the Spirit of prophecy, David foretells the just judgments of God that would come upon his enemies for their great wickedness. These are predictions, they look forward, and show the doom of the enemies of Christ and his kingdom. We must not desire or pray for the ruin of any enemies, except our lusts and the evil spirits that would compass our destruction. A traveller benighted in a bad road, is an expressive emblem of a sinner walking in the slippery and dangerous ways of temptation. But David having committed his cause to God, did not doubt of his own deliverance. The bones are the strongest parts of the body. The psalmist here proposes to serve and glorify God with all his strength. If such language may be applied to outward salvation, how much more will it apply to heavenly things in Christ Jesus!Let their way be dark and slippery,.... In which they run before the angel, chasing and pursuing them; so that they know not where they are, at what they stumble, whither to flee, nor how to stand; the ways of wicked men are as darkness, they know not in what condition they are, and whither they are going; and utter darkness, even blackness of darkness, is reserved for them: but here it means a calamitous, uncomfortable, fickle, and unstable situation in this life; see Jeremiah 23:11. The allusion is to some of the valleys in the land of Palestine, which were dark, and the roads in them very smooth and slippery, as travellers in those parts have observed (q);

and let the angel of God persecute them; See Gill on Psalm 35:5.

(q) See Maundrell's Travel's, p. 7.