Mark 13:30 in the King James Version
Verily I say unto you, that this generation shall not pass, till all these things be done.
Context
29 even so you also, when you see these things coming to pass, know that it is near, at the doors.
30 Most certainly I say to you, this generation will not pass away until all these things happen.
31 Heaven and earth will pass away, but my words will not pass away.