John Calvin's Bible Commentary
Jeremiah 42:11
The Prophet obviates the doubt which might have grieved or agitated the minds of the people. They ought, indeed, to have recumbed on God’s promise alone; but it was difficult to be without doubts in a state of things so uncertain and confused; for the king of Babylon, as it has been stated, was grievously offended when the governor of the land was slain. The king had received wrong from the people, and the heat of war since the late victory had not cooled. They then justly feared, being conscious of the evil that had been done; and then they had to do with a proud and cruel enemy. God therefore removed from them this doubt; and thus he confirmed the paternal care which he had shewn towards them by kindly freeing them from every fear, and taking away every ground of terror.
Though Nebuchadnezzar had been offended, and might avenge the wrong done to him, yet God promised to prevent this, and declared that he would not suffer him to do any evil to the Jews. “Ye fear,” he says, “Nebuchadnezzar, but cease to do so; let this fear be dismissed, for he will not hurt you.” And the reason is added, Because I am with you to save you, and to deliver you from his hand Here he bade the Jews to entertain good hope, because, while relying on his protection they would be safe: for there is no more any reason for doubting, when God declares that he will stand on our side. For if he is ours, we may be confident, as David was, when he said,
“I will not fear what man may do to me; for thou, God,”
he says, “art with me;”
and also,
“I will not fear though hosts surrounded me oft every side.”
(Psalms 23:4; Psalms 27:3)
We ought then to feel wholly assured, that the help of God is above that of all creatures. Thus were the whole world to rise up against us, we might as from a secure and safe place look down with indifference on all attempts, forces, and preparations. This is then the sum of what is here said; and it is according to what Christ says,
“My Father, who has given you to me, is greater than all.”
(John 10:29)
Had there then been a grain of faith in the Jews, they would have laid hold on this promise; and then had they tenaciously held it, as though it were a plank in a shipwreck, it would have led them safe to the harbor. It ought then to be sufficient to shake off all cares, to drive away all fears, and to put to flight every diffidence, when God promises to stand on our side. I am, he says, with you to save you, and he adds, to deliver you He expresses the way and manner of saving them; for they might still have objected and said, “What will be this salvation? for Nebuchadnezzar is like a furious lion; how then can we be saved, since we cannot think otherwise than that he will be enraged against us?” To this God answers, by pointing out the manner, for he would deliver them from his hand.