Verses with the word oppressing in the Old Testament (3 verses):

Jeremiah 46:16
He made many to fall, yea, one fell upon another: and they said, Arise, and let us go again to our own people, and to the land of our nativity, from the oppressing sword.

Jeremiah 50:16
Cut off the sower from Babylon, and him that handleth the sickle in the time of harvest: for fear of the oppressing sword they shall turn every one to his people, and they shall flee every one to his own land.

Zephaniah 3:1
Woe to her that is filthy and polluted, to the oppressing city!