In this verse the author mentions two military facts to us. Firstly, the Babylonian soldiers breached the wall. And secondly, the Judean soldiers and King Zedekiah escaped in the night and they fled toward the valley of the Jordan. The fact that they went that way could have been triggered by the thought that the growth of shrubs and trees by the Jordan provided good areas to hide. The area was known as the jewel of the Jordan.
4 Alors la brèche fut faite à la ville; et tous les gens de guerre s'enfuirent de nuit par le chemin de la porte entre les deux murs près du jardin du roi, pendant que les Chaldéens environnaient la ville. Les fuyards prirent le chemin de la plaine.