And he said also to the people,
When you see a cloud rise out of the west, immediately you say, There comes a shower; and so it is.
Read Chapter 12
Basil the Great
AD 379
Now we must observe, that conjectures concerning the stars are necessary to the life of man, as long as we do not push our searches into their signs beyond due limits. For it ispossible to discover some things with respect to coming rain, still more concerning heat and the force of the winds, whether partial or universal, stormy or gentle. But the great advantage that is rendered to life by these conjectures is known to every one. For it is of importance to the sailor to prognosticate the dangers of storms, to the traveler the changes of the weather, to the husbandmen the abundant supply of his fruits.
Or, they who from the change of the elements can easily when they like predetermine the state of the weather, might if they wished also understand the time of our Lord's coming from the words of the Prophets.
But lest any of the people should allege their ignorance of the prophetical books as areason why they could not discern the courses of the times, He carefully adds, And why even of yourselves judge you not what is right, showing them that although unlearned they might still by their natural ability discern Him, who did works such as none other man did, to be above man, and to be God, and that therefore after the injustice of this world, the just judgment of the creation would come.
And He said to the multitudes also, When ye see a cloud rising in the west, straightway ye say, There cometh a shower; and so it cometh to pass. When you see a cloud from the west you say, It will rain. In the same manner Elijah, in the time of the three years" drought, when he heard from his servant that a cloud had arisen in the west, at once foretold that rain would follow, and it did so.
1 Kings 18:44. The cause of this is natural; for Juda has the Mediterranean on the west, from which by the force of the sun many vapours are exhaled, which, when condensed into clouds by the heat of the sun, produce rain, especially when the sun is also in the west; for it is then too weak to disperse these vapours and prevent them from condensing into clouds and dissolving in rain. But the countries that have the sea equally on the west, the south and the north have, equally, from these quarters, clouds as forerunners of winds, as the English, who have the sea on all sides of them. See Matthew ...
For the prophets have in many ways foretold the mystery of Christ; it became them therefore, if they were wise, to stretch their prospect beyond to the future, nor will ignorance of the time to come avail them after the present life. For there will be wind and rain, and afuture punishment by fire; and this is signified when it is said, A shower comes. It became them also not to be ignorant of the time of salvation, that is, the coming of the Savior, through whom perfect piety entered into the world. And this is meant when it is said, You say that there will be heat. Whence it follows in censure of them, You hypocrites, you can discern the face of the sky and the earth, but how is it that you do not discern this time.
People focus their attention on things of this kind. From long observation and practice they tell beforehand when rain will fall or violent winds will blow. One especially sees that sailors are very skillful in this matter. He says that it would be suitable for those who can calculate things of this sort and may foretell storms that are about to happen to focus the penetrating eyes of the mind also on important matters. What are these? The law showed beforehand the mystery of Christ, that he would shine out in the last ages of the world on the inhabitants of the earth and submit to be a sacrifice for the salvation of all. It even commanded a lamb to be sacrificed as a type of him who died towards evening and at lighting of lamps. We might now understand that when, like the day, this world was declining to its close, the great, precious and truly saving passion would be fulfilled. The door of salvation would be thrown wide open to those who believe in him, and abundant happiness be thei...
In these words he reproaches them, that they knew well enough how to judge of the weather by the appearance of the heavens; but were ignorant how to distinguish the times: i.e. could not discern that the time marked by the prophets, for the coming of the Messias, was accomplished. In Palestine, the Mediterranean Sea, which was to the west, was accustomed to send clouds and rain; and the south winds, which came from Arabia and Egypt, very warm countries, caused dryness and heat. (Calmet)