Luke 21: 25 - 28, 34 - 36
25 "And there will be signs in sun and moon and stars, and upon the earth distress of nations in perplexity at the roaring of the sea and the waves,
26 men fainting with fear and with foreboding of what is coming on the world; for the powers of the heavens will be shaken.
27 And then they will see the Son of man coming in a cloud with power and great glory.
28 Now when these things begin to take place, look up and raise your heads, because your redemption is drawing near."
34 "But take heed to yourselves lest your hearts be weighed down with dissipation and drunkenness and cares of this life, and that day come upon you suddenly like a snare;
35 for it will come upon all who dwell upon the face of the whole earth.
36 But watch at all times, praying that you may have strength to escape all these things that will take place, and to stand before the Son of man."

EWTN