Gospel From: Matthew 24:37-44
The Time of the Second Coming of Christ and of the Last Judgment (Continuation)
Jesus said to his disciples,)  "As were the days of Noah, so will be the coming of the Son of man.  For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the ark,  and they did not know until the flood came and swept them all away, so will be the coming of the Son of man.  Then two men will be in the field; one is taken and one is left.  Two women will be grinding at the mill; one is taken and one is left.
Vigilance. The Faithful Servant
 "Watch therefore, for you do not know on what day your Lo rd is coming.  But know this, that if the householder had known in what part of the night the thief was coming, he would have watched and would not have let his house be broken into.  Therefore you also must be ready; for the Son of man is coming at an hour you do not expect.
37-39. In a few strokes our Lord sketches man's perennial insensitivity and carelessness towards the things of God. Man thinks it is more important to eat and drink, to find a husband or wife; but if that is his attitude he is forgetting about the most important thing--eternal life. Our Lord also foretells that the end of the world will be like the great flood; the Son of man's second coming will happen unexpectedly, taking people by surprise, whether they are doing good or evil.
40. It is in the context of the ordinary affairs of life--farmwork, housework, etc-- that God calls man, and man responds: that is where his eternal happiness or eternal punishment is decided. To be saved, one does not need to meet any special conditions, or to be in a special position in life: one simply has to be faithful to the Lord in the middle of ordinary everyday affairs.
42. Jesus himself draws from this revelation about the future the practical moral that a Christian needs to be on the watch, living each day as if it were his last.
The important thing is not to be speculating about when these events will happen and what form they will take, but to live in such a way that they find us in the state of grace.
Source: "The Navarre Bible: Text and Commentaries". Biblical text taken from the Revised Standard Version and New Vulgate. Commentaries made by members of the Faculty of Theology of the University of Navarre, Spain. Published by Four Courts Press, Kill Lane, Blackrock, Co. Dublin, Ireland. Reprinted with permission from Four Courts Press and Scepter Publishers, the U.S. publisher.