Verse 16
Give glory to - God - Confess your sins and turn to him, that these sore evils may be averted.
While ye look for light - While ye expect prosperity, he turned it into the shadow of death - sent you adversity of the most distressing and ruinous kind.
Stumble upon the dark mountains - Before you meet with those great obstacles, which, having no light - no proper understanding in the matter, ye shall be utterly unable to surmount.