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The leather of shields required oiling (2 Samuel 1:21; Isaiah 21:5), so as to prevent its being injured by moisture. Copper (= “brass”) shields were also in use (1 Samuel 17:6; 1 Kings 14:27). Those spoken of in 1 Kings 10:16, etc.; 14:26, were probably of massive metal.
The shields David had taken from his enemies were suspended in the temple as mementoes (2 Kings 11:10).