2 Peter 3:8
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.
Psalm 90:4
For a thousand years in your sight are but as yesterday when it is past, and as a watch in the night.
Romans 11:25
For I would not, brethren, that you should be ignorant of this mystery, lest you should be wise in your own conceits; that blindness in part is happened to Israel, until the fullness of the Gentiles comes in.
1 Corinthians 10:1
Moreover, brethren, I want not that you should be ignorant, how that all our fathers were under the cloud, and all passed through the sea;
1 Corinthians 12:1
Now concerning spiritual gifts, brethren, I would not have you ignorant.