Matthew Poole and continuators on Jeremiah 42:10

10 If ye will still abide in this land , then will I build you and not pull you down, and I will plant you, and not pluck you up : for I repent me of the evil that I have done unto you .

That is if you will not go into the Land of Egypt, as you are thinking, but abide where you are, or in any part of Iudah, under subjection to the King of Babylon into whose power I have given you.

Then I will see to your security, and prosperity, and make you an happy people, the happiness and prosperity of people is in Scripture often set out under the notion of building, and planting, as on the contrary their misery or destruction is expressed under the metaphorical notions of pulling down, and plucking up.

For I am satisfied with the punishment your Nation hath undergone, and as to the remainder, if they do not destroy themselves by new disobedience, I will change the course of my providence.