A quote from William Gurnall:
Some Christians, having been injured by a serious fall into sin, will be very careful for awhile as to where they walk and the kind of company they keep. But as the soreness of their consciences wears off, they forget to keep watch and become as careless as ever. A shopkeeper who has just been robbed is very careful to lock up his store thoroughly. He may even stay up late to watch it for several nights, but as time passes he relaxes his guard and at last gives it no further attention.~William Gurnall (The Christian In Complete Armor Volume One, Chapter 5, Part 3)
Josephus, in his Antiquities, tells us that the sons of Noah lived only on the tops of high mountains for some years after the flood, not daring to build houses on lower ground for fear of being drowned by another deluge. But as time passed and no flood came, they ventured down into the plain of Shinar where their former fear gave way to one of the boldest, most arrogant attempts against God that man ever pursued. They tried to build a tower high enough to reach heaven (Gen. 11:2-4). The very men who at first were so fearful of drowning that they would not venture down the hill, at last ventured on a plan to protect themselves against all future attempts from the God of heaven to judge them.
This quote was taken from the book The Christian In Complete Armor Volume One - A modernized abridgement of the Puritan Classic by William Gurnall, published by Banner Of Truth.