7 The shaft of his spear was as heavy and thick as a weaver's beam, tipped with an iron spearhead that weighed 15 pounds. His armor bearer walked ahead of him carrying a shield.

Matthew Henry's Commentary on 1 Samuel 17:7

Commentary on 1 Samuel 17:1-11

(Read 1 Samuel 17:1-11)

Men so entirely depend upon God in all things, that when he withdraws his help, the most valiant and resolute cannot find their hearts or hands, as daily experience shows.