Bible Dictionary · S
Sling
With a sling and a stone David smote the Philistine giant (1 Sam 17:40, 1 Sam 17:49). There were 700 Benjamites who were so skilled in its use that with the left hand they “could sling stones at a hair breadth, and not miss” (Judg 20:16; 1 Chr 12:2). It was used by the Israelites in war (2 Kgs 3:25). (See Arms.)
The words in Prov 26:8, “As he that bindeth a stone in a sling,” etc. (Authorized Version), should rather, as in the Revised Version, be “As a bag of gems in a heap of stones,” etc.
From Easton’s Bible Dictionary (1897), by Matthew George Easton.