2 Peter 3:8

Dearly beloved, be not ignorant of this one thing, how that one day is with the Lord as a thousand years, and a thousand years as one day.

Psalm 90:4

For a thousand years in thy sight are but as yesterday, seeing that is passed as a watch in the night.

Romans 11:25

I would not that this secret should be hid from you my brethren, lest ye should be wise in your own conceits: that partly blindness is happened in Israel, until the fullness of the gentiles be come in.

1 Corinthians 10:1

Brethren I would not that ye should be ignorant of this, how that our fathers were all under a cloud, and all passed through the sea,

1 Corinthians 12:1

In spiritual things, brethren, I would not have you ignorant.

Treasury of Scripture Knowledge

Summary

But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.

That one

General references

Bible References

Be not

Romans 11:25
I would not that this secret should be hid from you my brethren, lest ye should be wise in your own conceits: that partly blindness is happened in Israel, until the fullness of the gentiles be come in.
1 Corinthians 10:1
Brethren I would not that ye should be ignorant of this, how that our fathers were all under a cloud, and all passed through the sea,
1 Corinthians 12:1
In spiritual things, brethren, I would not have you ignorant.

That one

Psalm 90:4
For a thousand years in thy sight are but as yesterday, seeing that is passed as a watch in the night.

General references

Job 10:5
Are thy days as the days of man, and thy years as man's years,
Psalm 114:4
The mountains skipped like rams, and the little hills like young sheep.
Hebrews 10:37
For yet a very little while, and he that shall come will come, and will not tarry: