23 And he struck down an Egyptian, a man of great stature, five cubits7 tall. The Egyptian had in his hand a spear tlike a weaver’s beam, but Benaiah went down to him with a staff and snatched the spear out of the Egyptian’s hand and killed him with his own spear. 24 These things did Benaiah the son of Jehoiada and won a name beside the three mighty men. 25 He was renowned among the thirty, but he did not attain to the three. And David set him over his bodyguard.
A cubit was about 18 inches or 45 centimeters