I will be glad and rejoice in thy mercy: for thou hast considered my trouble; thou hast known my soul in adversities;
I will ... rejoice in thy mercy. With the eye of faith he SEES God already having regard to his "trouble," and therefore rejoices in God's mercy, as if it already had granted him deliverance.
Thou ... in adversities - i:e., thou hast known my soul in adversities in such a way as to save it out of them. So the Septuagint, Ethiopic, Vulgate, and Arabic. But the Chaldaic and Syriac translate, 'thou hast known the adversities of my soul;' literally, 'thou hast known in respect to' them. So the Hebrew х yaada` (H3045) + bª-] in Job 35:15, where see my note. Compare Psalms 25:17.