Now, all you skeptics out there may think that no one that tall could possibly stand up let alone bear the weight of all his armor. But understand this: Goliath was not fully human. He was a demon/human hybrid, a post-flood version of the Nephillim known as "Anakim and Rephaim." He had demonic help.
(For more on that topic, follow this link:
On his head, he wore a bronze helmet and was dressed all in armor of bronze, which weighed five thousand shekels (approx. 125lbs). He had bronze armor on his legs and a bronze javelin between his shoulders. His spear was as big as a weaver's beam (you know, like the size of a telephone pole), and his iron spearhead weighed six hundred shekels (15lbs). The total weight was more than 1,000lbs!
" Then David’s men swore to him, saying, “Never again will you go out with us to battle, so that the lamp of Israel will not be extinguished.”
And that, Church, is why David picked up Five Smooth Stones!