And GOD said,let there be lights in the firmament of the heavens,to divide the day from the night;and let them be for signs,and for seasons,and for days,and years.Genesis.1:14.
And there shall be signs in the Sun,and in the Moon,and in the stars;and upon the Earth distress of nations;with perplexity;the sea and the waves roaring.Men's hearts failing them for fear,and for looking after those things which are coming on the Earth;for the powers of heaven shall be shaken.And then they shall see the Son of man coming in a cloud with power and great glory.
Verily I say unto you,this generation shall not pass away,till all be fulfilled.Heaven and Earth shall pass away;but my words shall not pass away. Luke 21:25.26.27.32.33.