John Trapp on Jeremiah 34:4

Ver. 4. Yet hear the Word of the Lord] A word of comfort. The Lord is good to all: and his tender mercies are over all his works, Pſal. 145.9. Out of his philanthropy he giveth this wicked Prince a mitigation of his juſt puniſhment, and a further time to repent: as Rev. 2.21. And poſſibly this goodneſſe of God might in time lead him to repentance, as Rom. 2.4.

Thou ſhalt not dye by the ſword] And yet Joſiah his Father (a far better man) did: ſo unſearchable are Gods Judgements, and his wayes paſt finding out.