Charles H. Spurgeon on Psalms 30:7

Lord, by thy favour thou hast made my mountain to stand strong. He ascribed his prosperity to the Lord's favour —so far good, it is well to own the hand of the Lord in all our stability and wealth. But observe that the good in a good man is not unmingled good, for this was alloyed with carnal security. His state he compares to a mountain, a molehill would have been nearer —we never think too little of ourselves. He boasted that his mountain stood strong, and yet he had before, in Psalm 29, spoken of Sirion and Lebanon as moving like young unicorns. Was David's state more firm than Lebanon? Ah, vain conceit, too common to us all! How soon the bubble bursts when God's people get conceit into their heads, and fancy that they are to enjoy immutability beneath the stars, and constancy upon this whirling orb. How touchingly and teachingly God corrected his servant's mistake: Thou didst hide thy face, and I was troubled. There was no need to come to blows, a hidden face was enough. This proves, first, that David was a genuine saint, for no hiding of God's face on earth would trouble a sinner; and, secondly, that the joy of the saint is dependent upon the presence of his Lord. No mountain, however firm, can yield us rest when our communion with God is broken, and his face is concealed. However, in such a case, it is well to be troubled. The next best thing to basking in the light of God's countenance, is to be thoroughly unhappy when that bliss is denied us.

"Lord, let me weep for nought for sin!

And after none but thee!

And then I would —O that I might,

A constant weeper be!"