Mark 13:35

Watch thereforefor you do not know when the master of the house will come, in the evening, or at midnight, or when the rooster crows, or in the morning

James 4:14

Yet you do not know what will happen tomorrow. What is your life? You are a mist that appears for a little while and then vanishes.

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
Watch thereforefor you do not know when the master of the house will come, in the evening, or at midnight, or when the rooster crows, or in the morning
James 4:14
Yet you do not know what will happen tomorrow. What is your life? You are a mist that appears for a little while and then vanishes.

General references

Romans 9:16
So it depends not upon man's will or exertion, but upon God's mercy.