1 Kings 15:22

Geba, situated opposite to Michmash 1 Samuel 14:5, is almost certainly “Jeba,” which stands picturesquely on the top of its steep terraced hill on the very edge of the “Wady Suweinit.” Its position was thus exceedingly strong; and, as it lay further north than Ramah, Asa may have considered that to fortify and garrison it would be a better protection to his northern frontier than fortifying Ramah.

For Mizpah see the marginal reference From Jeremiah 41:9 we learn that Asa, besides fortifying the place, sank a deep well there to secure his garrison from want of water if the town should be besieged.