* "Know therefore that the LORD thy God, He is God, the faithful God, which keepeth covenant and mercy with them that love Him and keep His Commandments to a thousand generations" (Deut. 7:9).
* "Be ye mindful always of His covenant; the Word which He commanded to a thousand generations" (1 Chron. 16:15).
* "He hath remembered His covenant for ever, the Word which He commanded to a thousand generations" (Ps. 105:8).
According to the prayer of Moses, somewhere around 1500 B.C., the average lifespan will be about seventy years (Ps. 90:1, 10). In praying this, Moses must have been speaking as a prophet of a future time, because he, himself, actually live to be 120 (Deut. 34:7, 10).
According to "The Annales Veteris et Novi Testamenti," published by Anglican Archbishop James Ussher (1581-1656), the world was created in 4004 B.C. That is 6,017 years ago as of A.D. 2013. The date according to the Hebrew calendar is only 5773 which means there is a difference of 244 years between the two estimates. Regardless of which figure one uses, I think all of us would agree that, according to the Bible and not "science falsely so called" (1 Tim. 6:20), the world is about 6000 years old. God's Word is true, and a generation is about seventy years, so for 1000 generations to live, it would take 70,000 years! Seeing the signs of Christ's Second Coming everyday in the News, and knowing there is only about 1000 years left for this old world (Rev. 19:1-20:15), the phrase, "1000 generations" must be stating that the Word of God will last forever!
The Word existed before the world was created (Jn. 1:1-3).
The Word existed before Abraham; the Word is the "I AM" (Jn. 5:58).
Jesus is the "I AM" seven times in Revelation:
Revelation 1:8, 11, 17, 18; 21:6; 22:13, 16!