Answer: In His Own time, God will bring about the
appearing of our Lord Jesus Christ, (verses 14 and 15).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Matthew 24:30-31, 36-39, 42-44: [Jesus
said,] "At that time the sign of the Son of Man will appear
in the sky, and all the nations of the earth will mourn. They will
see the Son of Man coming on the clouds of the sky, with power and
great glory. And He will send His angels with a loud trumpet
call, and they will gather His elect from the four winds, from one
end of the heavens to the other...NO ONE KNOWS ABOUT THAT DAY
OR HOUR, NOT EVEN THE ANGELS IN HEAVEN, NOR THE SON, BUT ONLY THE
FATHER. As it was in the days of Noah, so it will be at the
coming of the Son of Man. For in the days before the flood,
people were eating and drinking, marrying and giving in marriage,
up to the day Noah entered the ark; and they knew nothing about
what would happen until the flood came and took them all away. That
is how it will be at the coming of the Son of Man...Therefore
keep watch, because you do not know on what day your Lord will
come. But understand this: If the owner of the house had
known at what time of night the thief was coming, he would have
kept watch and would not have let his house be broken into.
So you also must be ready, because the Son of Man will come at an
hour when you do not expect Him."
Acts 1:7: "He [Jesus] said to them:
'It is not for you to know the times or dates the Father has
set by His Own authority.'"