Both organisations are interested in archaeology from the biblical point of view. Many more discoveries were made in 2012, of course, but these are the ten highlights that were picked out by them.
Out of those ten, the discovery of a water cistern from the First Temple period below Robinson’s Arch is at the top of my list, as it casts light on the water situation in Jerusalem probably during the time of Hezekiah.
During his time, Jerusalem extended greatly to include the Western Hill and every possiblilty to store water must have been explored. The largest known water reservoirs that were made at that time were the Pools of Siloam and Bethesda.
Second place goes to the Matanyahu seal that was found beneath Robinson’s Arch too.
People used personal seals in the First Temple period for the purpose of signing letters and they were set in a signet ring. The seals served to identify their owner, just as they identify officials today.