John Gill's Exposition of the Whole Bible
Psalms 92:15
To show that the Lord is upright,.... Or righteous, that is, faithful; as he is in his counsels, covenant, and promises, which he makes good by causing his people to grow and flourish, and become fruitful; by carrying on the work of grace upon their souls, and by preserving them to the end safe to his kingdom and glory; by all which it appears that he does not and will not suffer his faithfulness to fail: the Targum is,
"that the inhabitants of the earth may show, c.''
he is my Rock the psalmist sets his seal to the truth of God's faithfulness, firmness, and constancy, calling him a Rock for his strength and stability, and claiming his interest in him; declaring he found him to be so by experience,
even the Rock whose work is perfect; who always completes what he undertakes, and finishes what he begins, and will not forsake the work of his own hands:
just and right is he; the Rock of ages, that remains firm, steadfast, and unalterable in all generations:
and there is no unrighteousness in him; as not in his sovereign acts of grace, so neither in his providential dispensations, either towards good men or bad men; not in suffering the wicked to prosper, as in
Psalms 92:7, and the righteous to be afflicted; nor in punishing bad men here, or hereafter; nor in justifying sinners by the righteousness of his Son, and giving them the crown of righteousness at the last day: all his proceedings are in the most just and equitable manner; see Romans 9:14.