Selah

"A word frequently found in the Book of Psalms, and also in Hab." "3:9, 13, about seventy-four times in all in Scripture. Its" "meaning is doubtful. Some interpret it as meaning "silence" or" "pause; others, "end," "a louder strain," "piano," etc. The" "LXX. render the word by daplasma i.e., "a division."

Cliff of divisions the name of the great gorge which lies "between Hachilah and Maon, south-east of Hebron. This gorge is" now called the Wady Malaky. This was the scene of the interview between David and Saul mentioned in 1 Sam. 26:13. Each stood on "an opposing cliff, with this deep chasm between."

Definition of Selah:
"the end; a pause"