Mark 13:30-34

Truly I say to you, this generation will not pass away until all these things take place.

Heaven and earth will pass away, but My words will not pass away.

But about that day or hour no one knows, not even the angels in heaven, nor the Son, but the Father alone.

“Watch out, stay alert; for you do not know when the appointed time is.

It is like a man away on a journey, who upon leaving his house and putting his slaves in charge, assigning to each one his task, also commanded the doorkeeper to stay alert.