He sent from above, he took me; he drew me out of many waters. See Gill on Psalm 18:16.

17 He reached out of the height, He laid hold of me;

Drew me out of great waters:

18 Saved me from my enemy strong;

From my haters, because they were too strong for me.

19 They fell upon me in my day of calamity:

Then Jehovah became my stay,

20 And led me out into a broad place;

Delivered me, because He had pleasure in me.

The Lord stretched His hand from the height into the deep abysses, which had been uncovered through the threatening of the wrath of God, and drew out the sinking man. ישׁלח without יד is used to denote the stretching out of the hand, and in the sense of reaching out to a thing (as in 2 Samuel 6:6). רבּים מים (great waters) does not refer to the enemy, but to the calamities and dangers (waves of death and streams of Belial, 2 Samuel 22:5) into which the enemies of the Psalmist had plunged him. ימשׁני, from משׁה (Exodus 2:10), from which the name of Moses was derived, to whom there is probably an allusion made. As Moses was taken out of the waters of the Nile, so David was taken out of great (many) waters. This deliverance is still further depicted in a more literal terms in 2 Samuel 22:18. עז איבי, my enemy strong, poetical for my strong enemy, does not refer to one single enemy, namely Saul; but, as the parallel "my haters" shows, is a poetical personification of all his enemies. They were stronger than David, therefore the Lord had to deliver him with an almighty hand. The "day of calamity" in which the enemy fell upon him (קדּם: see at 2 Samuel 22:6) was the time when David wandered about in the desert helpless and homeless, fleeing from the pursuit of Saul. The Lord was then his support, or a staff on which he could support himself (vid., Psalm 23:4), and led him out of the strait into the broad, i.e., into a broad space where he could move freely, because God had pleasure in him, and had chosen him in His grace to be His servant. This reason for his deliverance is carried out still further in what follows.

He sent from above, he took me; he drew me out of many waters;

many: or, great

22:1-51 David's psalm of thanksgiving. - This chapter is a psalm of praise; we find it afterwards nearly as Ps 18. They that trust God in the way of duty, shall find him a present help in their greatest dangers: David did so. Remarkable preservations should be particularly mentioned in our praises. We shall never be delivered from all enemies till we get to heaven. God will preserve all his people, 2Ti 4:18. Those who receive signal mercies from God, ought to give him the glory. In the day that God delivered David, he sang this song. While the mercy is fresh, and we are most affected with it, let the thank-offering be brought, to be kindled with the fire of that affection. All his joys and hopes close, as all our hopes should do, in the great Redeemer.