King James Version
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.English Standard Version
But do not overlook this one fact, beloved, that with the Lord one day is as a thousand years, and a thousand years as one day.New International Version
But do not forget this one thing, dear friends: With the Lord a day is like a thousand years, and a thousand years are like a day.