Mark 13:29-33

In the same way, when you see these things happening, you will know that the time is near, ready to come. I tell you the truth, all these things will happen while the people of this time are still living. Earth and sky will be destroyed, but the words I have said will never be destroyed. “No one knows when that day or time will be, not the angels in heaven, not even the Son. Only the Father knows. Be careful! Always be ready, because you don’t know when that time will be.