Mark 13:20

And if the Lord had not shortened the days, no human life would have been saved; but for the sake of the elect, whom He chose [for Himself], He shortened the days.

Isaiah 65:8-9

This is what the Lord says,

“As the new wine is found in the cluster,
And one says, ‘Do not destroy it, for there is a blessing and benefit in it,’
So I will do for the sake of My servants
In order not to destroy all of them.

Isaiah 1:9

If the Lord of hosts
Had not left us a few survivors,
We would be like Sodom,
We would be like Gomorrah.

Isaiah 6:13

“And though a tenth [of the people] remain in the land,
It will again be subject to destruction [consumed and burned],
Like a massive terebinth tree or like an oak
Whose stump remains when it is chopped down.
The holy seed [the elect remnant] is its stump [the substance of Israel].”

Zechariah 13:8-9

“It will come about in all the land,”
Declares the Lord,
“Two parts in it will be cut off and perish,
But the third will be left alive.

Matthew 24:22

And if those days [of tribulation] had not been cut short, no human life would be saved; but for the sake of the elect (God’s chosen ones) those days will be shortened.

Romans 11:5-7

So too then, at the present time there has come to be a remnant [a small believing minority] according to God’s gracious choice.

Romans 11:23-24

And even they [the unbelieving Jews], if they do not continue in their unbelief, will be grafted in; for God has the power to graft them in again.

Romans 11:28-32

From the standpoint of the gospel, the Jews [at present] are enemies [of God] for your sake [which is for your benefit], but from the standpoint of God’s choice [of the Jews as His people], they are still loved by Him for the sake of the fathers.

Treasury of Scripture Knowledge

Summary

Mark 13:20

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.

For

General references

Isaiah 65:8

Bible References

For

If the Lord of hosts
Had not left us a few survivors,
We would be like Sodom,
We would be like Gomorrah.

“It will come about in all the land,”
Declares the Lord,
“Two parts in it will be cut off and perish,
But the third will be left alive.

And if those days [of tribulation] had not been cut short, no human life would be saved; but for the sake of the elect (God’s chosen ones) those days will be shortened.

So too then, at the present time there has come to be a remnant [a small believing minority] according to God’s gracious choice.