John Gill Commentary Jeremiah 34:20

"I will even give them into the hand of their enemies, and into the hand of them that seek their life; and their dead bodies shall be for food unto the birds of the heavens, and to the beasts of the earth." — Jeremiah 34:20 (ASV)

I will even give them into the hand of their enemies
The Chaldeans, who were the enemies of the Jews, that were come from a far country to invade, dispossess, ravage, and plunder them; and what can be a greater punishment than to be given up into an enemy's hand, to be in his power, and at his mercy? and into the hand of them that seek their life ;
not their wealth and substance only, but their lives also; nothing less will content them: and their dead bodies shall be for meat unto the fowls of the heaven ,
and to the beasts of the earth ;
not only such should be the cruelty of their enemies that sought their lives, that they should slay them with the sword, and give them no quarter; but such their inhumanity, that they should not suffer their carcasses to be buried, but leave them exposed to birds and beasts of prey; of the princes of Judah, see (Jeremiah 52:10) .