Hebrews 11:5-6 By faith Enoch was taken away so that he did not see death, “and was not found because God had taken him”; for before he was taken he had this testimony, that he pleased God. But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.
So, what was it that Enoch did that pleased God? The author of Hebrews says that Enoch pleased God and then went on to define what pleases God. It is faith. But where did the author get the evidence of His faith? It is not mentioned in Genesis, or is it.
According to Genesis 5 Enoch walked with God for 300 years but that did not start until the birth of his first son at the age of 65. We know very little about the walk and even less about his time before the birth of his son. But, given the custom of naming your child we can have a clue.
Enoch’s firstborn was named Methuselah which means “his death shall bring.” Bring what? Does Enoch know something about his own son’s death? If so, how? Through a time-line it would seem that Methuselah died within a year or two of the completion of the ark.
Therefore, it would seem that Enoch had a divine visitation from God around the birth of his son and in this visitation God revealed to him the destruction of mankind almost 1,000 years down the road. By faith he names his son after that revelation. By faith he walked with God for 300 years. And it is by faith that we please God.