Enoch gave his son Methuselah a name which means “he dies and it (the flood) is sent”. This was a prediction given by Enoch the Prophet that when his son died the flood would come. So a great prophet gives a warning and another man builds a huge boat miles away from the sea and takes 120 years to complete it.
God kept Methuselah alive for as long as possible, yes longer than any man has ever lived because He knew that on the day of his death the time of mercy was over and he wanted “a big extension of mercy” for people to get the message and return to Him. Along with a huge construction project “Noah’s Ark” I’d suggest that we get a good indication that God is always looking to avoid judgement whenever possible and that’s simply because He loves us!