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 lança dele era enorme, muito grossa e pesada; a ponta era de ferro e pesava mais ou menos sete quilos. Na frente dele ia um soldado carregando o seu escudo.