Mark 13:20

And unless the Lord had made those days few, no flesh could be saved: but for the sake of the elect whom he has chosen, he has made those days few.

Matthew 24:22

And unless those days should be made few, no flesh could be saved. But on account of the elect those days shall be made few.

Romans 11:5-7

Thus, then, at the present time also, there is a remnant according to the election of grace.

Romans 11:23-24

And they, also, if they continue not in unbelief, shall be grafted in: for God is able to graft them in again.

Romans 11:28-32

As it respects the gospel, they are enemies of God for your sakes; but as it respects their election, they are beloved for the fathers sakes:

Treasury of Scripture Knowledge

Summary

And except that the Lord had shortened those days, no flesh should be saved: but for the elect's sake, whom he hath chosen, he hath shortened the days.

Bible References

For

Matthew 24:22
And unless those days should be made few, no flesh could be saved. But on account of the elect those days shall be made few.
Romans 11:5
Thus, then, at the present time also, there is a remnant according to the election of grace.