2 Esdras 4:51: “Then I prayed, and said, May I live, thinkest thou, until that time? or what shall happen in those days?

2 Esdras 4:52: “He" [Uriel] "answered me, and said, As for the tokens whereof thou askest me, I may tell thee of them in part: but as touching thy life, I am not sent to shew thee; for I do not know it.”

To understand the tokens/prophecies, read 2 Esdras 4:26 through 2 Esdras 8:61