For ye shall be as an oak whose leaf fadeth, and as a garden that hath no water.
Ye shall be as an oak - ye shall be like the "oaks," the object of your "desire" (Isaiah 1:29). People become like the gods they worship: they never rise above, their level (Psalms 135:18). So men's sins become their own scourges (Jeremiah 2:19).
Whose leaf fadeth. Contrast Isaiah 6:13 as to the elect remnant which 'shall survive. The leaf of the idoloak fades by a law of necessary consequence, having no living sap or "water" from God.
And as a garden that hath no water. Righteous retribution in kind is marked by the fact that "garden" answers to "gardens" (Isaiah 1:29).