Luke 21:32

Most certainly I tell you, this generation will not pass away until all things are accomplished.

Matthew 24:34

Most certainly I tell you, this generation will not pass away, until all these things are accomplished.

Mark 13:30

Most certainly I say to you, this generation will not pass away until all these things happen.

Matthew 16:28

Most certainly I tell you, there are some standing here who will in no way taste of death, until they see the Son of Man coming in his Kingdom."

Matthew 23:36

Most certainly I tell you, all these things will come upon this generation.

Luke 11:50-51

that the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation;

Treasury of Scripture Knowledge

Summary

Verily I say unto you, This generation shall not pass away, till all be fulfilled.

Bible References

General references

Luke 11:50
that the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation;
Matthew 16:28
Most certainly I tell you, there are some standing here who will in no way taste of death, until they see the Son of Man coming in his Kingdom."
Matthew 23:36
Most certainly I tell you, all these things will come upon this generation.
Matthew 24:34
Most certainly I tell you, this generation will not pass away, until all these things are accomplished.
Mark 13:30
Most certainly I say to you, this generation will not pass away until all these things happen.