Mark 13:35

keep watch then, for you do not know when the master of the house is coming??n the evening, at midnight, at cockcrow, or in the morning??36 lest he should come unexpectedly and find you sleeping;

James 4:14

when all the time you do not know what will happen on the morrow. For what is your life? You are but a mist, appearing for a brief time, and then vanishing.

Treasury of Scripture Knowledge

Summary

And he said, Behold now, I am old, I know not the day of my death:

I know not

General references

Bible References

I know not

Mark 13:35
keep watch then, for you do not know when the master of the house is coming??n the evening, at midnight, at cockcrow, or in the morning??36 lest he should come unexpectedly and find you sleeping;
James 4:14
when all the time you do not know what will happen on the morrow. For what is your life? You are but a mist, appearing for a brief time, and then vanishing.

General references

Romans 9:16
So then it is not a question of him who wills, nor of him who runs, but of God who has mercy.