Jeremiah 21:5

And I myself will fight against you with an outstretched hand and with a strong arm, even in anger, and in fury, and in great wrath.

And myself will fight against you,.... So far from being entreated to do for them according to his wondrous works in times past, as their friend; that he will set himself against them as their enemy; and sad it is to have God for an enemy: if God be for a people, none can be against them to do them any hurt; but if he is against them, it signifies nothing who is for them: this must be much more terrible to them than the whole Chaldean army, and the king of Babylon at the head of them:

with an outstretched hand, and with a strong arm; such as he had used formerly in delivering Israel out of Egypt, but now in delivering them into the hands of their enemies; and out of the reach of such a hand there is no getting; and under the weight of such an arm there is no supporting; see Exodus 6:6;

even in anger, and in fury, and in great wrath; because of their sins and iniquities. This heap of words is used to show the greatness of his indignation: this was not the chastisement of a father, but the rebuke of an enemy; not a correction in love, but in hot displeasure; a punishment inflicted in vindictive wrath by a righteous Judge, appearing in a warlike manner.