#25 Understanding before the until Part 1

Jesus in Matt 24:39 warns his disciples that the people in the days of Noah did not understanding what was going to happen until it happened. But by then it was too late?
Either you understand the times to escape the coming tragedy, or you will only understand when the tragedy comes upon you. But … By then, it is too late. Therefore, being vigilant and being able to read the times is imperative.