The translation of perets, "a breach" (Eze 13:5, "Ye have not gone up into the gaps," the Revised Version, margin "breaches"; Eze 22:30, "I sought for a man among them, that should build up the wall, and stand in the gap before me for the land"). Said of prophets who failed to stand up for the right and to strengthen and preserve the people.
The International Standard Bible Encyclopedia
Gap
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.