Albert Barnes Commentary Jeremiah 39:17

"But I will deliver thee in that day, saith Jehovah; and thou shalt not be given into the hand of the men of whom thou art afraid." — Jeremiah 39:17 (ASV)

Of whom thou art afraid - The Chaldaeans. Ebed-melech apparently looked forward with much alarm to the bloodshed sure to take place at the storming of the city.