Psalms 59:16

I will sing of thy power - For it was because thy hand was upon me for good, that I have thus succeeded in my enterprises.

Yea, I will sing aloud of thy mercy - I shall publish abroad what thou hast done; and done not for my worthiness, nor for the worthiness of the people; but for thy own mercy's sake.

In the day of my trouble - When I came with small means and feeble help, and had the force and fraud of many enemies to contend with, besides the corruption and unfaithfulness of my own people; thou wast then my defense; and in all attacks, whether open or covered, my sure refuge. I will, therefore, sing of thy mercy in the morning - I will hasten to acquit myself of a duty I owe to thee for such singular interpositions of mercy and power.

But I will sing of thy power - That is, I will praise thee for the manifestation of thy power in rescuing me from danger.

Yea, I will sing aloud of thy mercy in the morning - When the light dawns; when these troubles are over; when the night of calamity shall have passed by. There is an allusion here, probably, to the fact that they encompassed the place of his abode at night Psalm 59:6, Psalm 59:14; but there is also the implied idea that that night was emblematic of sorrow and distress. The morning would come; morning after such a night of sorrow and trouble; a morning of joy and gladness, when he would feel that he had complete deliverance. Then would he praise God aloud. Compare the notes at Isaiah 21:12.

For thou hast been my defense and refuge in the day of my trouble - That is, he looked to the time when he would feel this; when looking back he could say this; when in view of it he would praise God.