If you study the Old Testament scriptures you will find after the flood events or battles of good vs evil. You also are revealed prophets and seers of God's word. We are not going through each event but we felt that we ought to highlight a couple to put the pieces to how history fits in to today.
God only works through man. God gave the dominion control over the earth to man and as such he only works through man to do his bidding. There is only one exception to this but man was used as a warning of what was to come - Sodom and Gomorrah. God used Moses to free the Israelite's from Egypt. Joshua fought the battle to protect the Israelite's with God's promise not only of a victory but he would protect them as long as they followed His laws. Cyrus let Nathanial to rebuild Jerusalem. Gideon used 300 men to defeat an entire army.
But one event I am not sure anyone picked up on. It is when the Israelite's were going to the promising land under the leadership of Moses. God told Moses to build a bronze head of a serpent and place it on his rod.
Numbers 21:7-9 "7 Therefore the people came to Moses, and said, We have sinned, for we have spoken against the Lord, and against thee; pray unto the Lord, that he take away the serpents from us. And Moses prayed for the people.8 And the Lord said unto Moses, Make thee a fiery serpent, and set it upon a pole: and it shall come to pass, that every one that is bitten, when he looketh upon it, shall live. 9 And Moses made a serpent of brass, and put it upon a pole, and it came to pass, that if a serpent had bitten any man, when he beheld the serpent of brass, he lived."
This bronze serpent head became the first symbol of the medical profession. The symbol was changed to two intertwined heads in the USA in 1902. We went from one serpent head to two representing Greek God of Medicine.
In Great Britain, as late as 1854, the distinction between the rod of Asclepius and the caduceus as symbols of two very different professions was apparently still quite clear. In his article On Tradesmen's Signs of London A.H. Burkitt notes that among the very old symbols still used in London at that time, which were based on associations between pagan gods and professions, "we find Mercury, or his caduceus, appropriate in trade, as indicating expedition. Esculapius, his Serpent and staff, or his cock, for professors of the healing art"