John Calvin's Bible Commentary
Jeremiah 49:5
Jeremiah at length concludes his prophecy, by saying, that God would dissipate that foolish confidence through which the Ammonites were filled with pride, because he would bring a terror on them. He sets up terror in opposition to that security in which the Ammonites lay torpid; for they were inebriated, as it were, with their pleasures. And then the strongholds by which they thought themselves protected, so hardened their hearts, that they feared no danger. God then sets up this terror in opposition to the false arrogance by which they were inflated: I bring, then, a terror from all around thee. And this was not without reason added, for the Ammonites thought that they could, on some side, escape, if enemies pressed hard on them; and as there were many outlets, they thought it impossible that they should fall into the hands of enemies. But God declares that they would be in every way full of fear, for terror would surround and besiege them, so that they could not escape.
He then adds, Ye shall be driven out, every one to his face, or, before his face. This would be the effect of terror, because God would deprive them of all thought; for when we flee in haste, and only regard any opening that may present itself, it is evident that we are driven by terror. As we say in French, Il court devant soi; so the Prophet says here, Ye shall be driven out, every one before his face, that is, “ye shall flee wherever a place may be open to you.” He shews that they would be so full of fear, that they would not consider which would be the best way, nor think of a safe retreat; they would, in short, think of nothing but of flight. And to the same purpose is what follows: There will be none to gather the dispersed: for when trembling seizes the hearts of the multitude, they can yet be recalled, when one who has more courage than the rest encourages them to stop, as we know that many armies have been in this way saved; for as to soldiers, when suddenly seized with fear, a leader has often been able to gather them again. But the Prophet, when he says, that there would be none to call them back from flight, intimates their destruction. He at length subjoins —