And he told them a parable: “Look at the fig tree, and all the trees.30 As soon as they come out in leaf, you see for yourselves and know that the summer is already near.31 So also, when you see these things taking place, you know that the kingdom of God is near. - Luke 21:29-31
For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noah entered into the ark, And knew not until the flood came, and took them all away;