2 Peter 3:8

But, beloved, let not this one thing escape you, that one day with the Lord is as a thousand years, and a thousand years as one day.

Romans 11:25

For I do not wish you, brethren, to be ignorant of this mystery (lest ye be wise in your own conceits), that a hardening, in part, has befallen Israel, until the fulness of the gentiles come in;

1 Corinthians 10:1

For I do not wish you to be ignorant, brethren, that our fathers were all under the cloud, and all passed through the sea;

1 Corinthians 12:1

Now concerning the spiritual gifts, brethren, I do not wish you to be 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.

General references

Bible References

Be not

Romans 11:25
For I do not wish you, brethren, to be ignorant of this mystery (lest ye be wise in your own conceits), that a hardening, in part, has befallen Israel, until the fulness of the gentiles come in;
1 Corinthians 10:1
For I do not wish you to be ignorant, brethren, that our fathers were all under the cloud, and all passed through the sea;
1 Corinthians 12:1
Now concerning the spiritual gifts, brethren, I do not wish you to be ignorant.

General references

Hebrews 10:37
"For yet a little while, how short! how short! The Coming One will come, and will not tarry."