Verse 10. It is he that giveth salvation unto kings. Those whom the Lord sets up he will keep up. Kings, from their conspicuous position, are exposed to special danger, and when their lives and their thrones are preserved to them they should give the Lord the glory of it. In his many battles David would have perished had not almighty care preserved him. He had by his valour wrought salvation for Israel, but he lays his laurels at the feet of his Lord and Preserver. If any men need salvation kings do, and if they get it the fact is so astonishing that it deserves a verse to itself in the psalm of praise.
Who delivereth David his servant from the hurtful sword. He traces his escape from death to the delivering hand of God. Note, he speaks in the present tense -- delivereth, for this was an act which covered his whole life. He puts his name to the confession of his indebtedness: it is David who owns without demur to mercy given to himself. He styles himself the Lord's servant, accepting this as the highest title he had attained or desired.
EXPLANATORY NOTES AND QUAINT SAYINGS
Verse 10. It is he that giveth salvation unto kings. Ferdinand, king of Aragon, sending his son against the Florentines, thus bespake him: Believe me, son, victories are not gotten by art or subtlety, but given of God. --John Trapp.
Verse 10. It is he that giveth salvation unto kings. What a doctrine this for the kings and great men of the earth to remember! Could they be brought to feel and acknowledge it, they would not trust to the sagacity of their own councils, nor to the strength of their own arm; but would ever remember that the Most High is the ruler among the nations, and that he putteth down one and raiseth up another according to the dictates of his own all perfect will. Such remembrances as this would stain the pride of all human glory, and would lead men to feel that the Lord alone is to be exalted. --John Morison.