Mark 13:30

27 and then he shall send his messengers, and gather together his chosen from the four winds, from the end of the earth unto the end of heaven.

28 `And from the fig-tree learn ye the simile: when the branch may already become tender, and may put forth the leaves, ye know that nigh is the summer;

29 so ye, also, when these ye may see coming to pass, ye know that it is nigh, at the doors.

30 Verily I say to you, that this generation may not pass away till all these things may come to pass;

31 the heaven and the earth shall pass away, but my words shall not pass away.

32 `And concerning that day and the hour no one hath known -- not even the messengers who are in the heaven, not even the Son -- except the Father.

33 Take heed, watch and pray, for ye have not known when the time is;