three: etc. or, the three captains over the thirty, 1 Chronicles 11:15-19 Shalishim:, "captains," should most probably be read, instead of shaloshim̀: thirty shalishim:, as it is in 2 Samuel 23:8, and Exodus 14:7; where LXX render τριστατας:, which Jerome (on Ezekiel 33:1-33) says "among the Greeks is the name of the second rank after the royal dignity."
the cave: Joshua 12:15, Joshua 15:35; 1 Samuel 22:1; Micah 1:15
the valley: 2 Samuel 5:18, 2 Samuel 5:22; 1 Chronicles 11:15, 1 Chronicles 14:9; Isaiah 17:5