I Samuel 17:7

7 His spear shaft was like a weaver's rod, and its iron point weighed six hundred shekels. That is, about 15 pounds or about 6.9 kilograms His shield bearer went ahead of him.

7 A haste da sua lança era como o eixo do tecelão, e a ponta da sua lança, de seiscentos siclos de ferro; e diante dele ia o escudeiro.