O LORD, the hope of Israel, all who abandon You will be put to shame. All who turn away will be written in the dust, for they have abandoned the LORD, the fountain of living water.
It appears more clear from this verse why the Prophet had commended before the excellency of his own nation, even that by the comparison their impiety might appear less excusable; for the more bountiful God had dealt with them, the more atrocious was their sin of ingratitude.
Here, as often before, we have the prophet retired for private meditation, and alone with God. Those ministers that would have comfort in their work must be much so. In his converse here with God and his own heart he takes the liberty which devout souls sometimes use in their soliloquies, to pass from one thing to another, without tying themselves too strictly to the laws of method and coherence.
Commenting on Jeremiah 17:12-18
O Lord, the Hope of Israel,.... Of all true Israelites; such as are regenerate persons, and true believers in him; Christ is the author and giver of that hope that is in them; the door of it unto them; the object on which it is exercised; the ground and foundation of it, or what gives encouragement to it; and the person they are hoping for...