There is a debate over whether or not Noah’s Flood actually covered the Earth. In modern Christianity, it is often taught that it was a worldwide flood. However, the Bible actually reports it differently.
For starters, the flood was reported by Noah’s son, Shem. Shem was 600 years old at the time, and he later became king of Salem (later known as Jerusalem). He is referred to as Melchizadek, meaning “good and righteous king.”
If Shem and Melchizadek are the same person, then Shem gave his firsthand account of the flood. He talks about it covering the “highest hills,” which in this case would mean the highest in view—instead of the highest in the world. There’s no way he would have seen the highest in the world, which would be Mt Everest, which is five miles high.
Melchizadek’s firsthand account of the flood was given to Abraham, and passed down to Moses.
The statement about the highest hills is often used to justify the argument that it was a worldwide flood. This idea was brought up in the 1960s by Professor Henry Morris The idea caused a loss of belief in the Bible—making many believe this story was a fable. But, to cover the highest peak, the observer would have to be far above the earth and moving all the way around its circumference. People weren’t doing this during pre-space age.