Jeremiah 31:2 - Joseph Benson’s Commentary on the Old and New Testaments

The people that were left of the sword That sword of Pharaoh with which he cut off the male children as soon as they were born, and that sword with which he threatened to cut them off when he pursued them to the Red sea. Found grace in the wilderness Though in the wilderness, where they seemed to be lost and forgotten, as these latter Jews and Israelites were now in a strange land, yet they found grace in God's sight, were owned, and highly honoured by him, and blessed with wonderful instances of his peculiar favour. And he went to cause them to rest Went before them in a pillar of cloud, to mark out the places for them where they should pitch their tents, and conducted them to the land that he had provided for them. And after such evidences of his kindness to them, why should they doubt of the continuance of his favours?