Jeremiah 39:16

The word Ethiopian is now repeated, because God intended, in the person of an alien indirectly to reprove the Jews; for no doubt they despised him, because he was not of the holy seed of Abraham. But God shews that he peculiarly regarded him, while he rejected the masked and hypocritical children of Abraham, who were only born of him according to the flesh, but had, by their impiety, renounced him, so that they were wholly unworthy of so high an honor.

And he says, Go and say, Behold, I am bringing my words on this city for evil and not for good; and they shall be before thee in that day. We conclude, from these words, that this was spoken to Ebedmelech before the city was taken by the Chaldeans, in order that he might remain quietly at home, and not flee away with the king, who, as we have seen, tried to escape. God then intended to strengthen the confidence of Ebedmelech, so that he might not fear and tremble like others, and expose himself to death, in trying to secure his safety. For this is the design of all God’s promises, even to keep us from being disturbed, to give us quietness of mind, and to cause us to look for the help promised to us. For we know that when fear lays hold on our minds, there is no settled purpose, but we are harassed by disquietude, and, as it were, tossed to and fro. It was therefore God’s design to bring aid beforehand, so that Ebedmelech might not, with others, be hurried into despair. He says, Behold, I am bringing, etc. God here confirms Ebedmelech in the truth, that he would be the author of the calamity; for had Jerusalem been taken by chance, Ebedmelech might justly have feared; but when he was taught that it was to happen through God’s just judgment he would feel sure of his safety; for it would be in the power of the same God to save one man and even many, while he was destroying the whole people. This, then, is the reason why God declared that he was bringing his words for evil and not for good; for except Ebedmelech had been convinced that the city and its inhabitants were in God’s hand and power, he could never have been led to entertain good hope; but when he knew that the city would perish through the righteous vengeance of God, he would then be fully confident as to his own safety; for God promised to preserve him in the midst of the common ruin.

He says, Thou shalt see, my words shall be before thee, as though he had said, “Thou shalt be an eye-witness of my power.” It was indeed necessary, as I have said, that Ebedmelech should see God’s hand in the destruction of the city and people; for he would ever have vacillated, and would have known no rest, had he not before his eyes the hand and the vengeance of God, This is one thing. But as to the words, I am bringing my words for evil and not for good, we have explained them elsewhere. The word evil does not mean sin here, but according to a common usage, evil is said to be whatever men regard as adverse to them; so all punishments inflicted by God are called evils, as we find in Isaiah,

“I am God, who create light and darkness, life and death,
good and evil.” (Isaiah 45:7)