23 Then if any man shall say to you, See, here is Christ, or there; believe it not.
24 For there shall arise false Christs, and false prophets, and shall show great signs and wonders; so that, if it were possible, they shall deceive the very elect.
25 Behold, I have told you before.
26 Why if they shall say to you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.
27 For as the lightning comes out of the east, and shines even to the west; so shall also the coming of the Son of man be.
So, if someone tells you He's in a certain place, do not go to find Him. You know it's not true because as lightning flashes in the east and is visible in the west so will the coming of Christ be visible to everyone. It's not secret!
It won't be a secret! You won't need anyone to tell you that He came. And if anyone tells you that He came, don't believe it!
He's coming back and when He comes every eye will see Him. It's God's promise! And it's sure!