It occurs to me that if the earth were young, its age would be hotly debated among secular scientists, as they were torn between the weight of the geological evidence and the timespans necessary to permit biological evolution, which they would need to hold to as a foundation of their naturalistic assumptions. As it is, science at large has reached total unanimity regarding the age of the earth, and the debate rages only within the church (including among Christian scientists) whose members are torn between the weight of the geological evidence and the timespan restraints imagined by some to be required by the Bible. The very fact that the debate about the age of the earth is raging in the church and not the secular scientific world is a strong indication that the earth is old. Indeed, as old as scientists say it is.
This is not because scientists are smart and Christians are dumb. Nor is it suggesting that in other questions scientists do not argue among themselves. Rather, this is an observation about which group of people—the scientific community or the Bible-believing church—is finding within their ranks apparent conflict between observations of nature and another perceived restraint on the limits of their belief. If the earth were young, it would show itself to be so. But secular science could not easily agree with such a conclusion, since it would preclude evolution. Thus they would be doing the bickering, while Christians happily and harmoniously acknowledged the youth of the planet. On the other hand, if the earth were old, it would show itself to be so, and some Christians would find this difficult to allow, do to a particular interpretation of the first eleven chapters of Genesis; others would permit the record of nature to inform their Bible interpretation and argue that the earth is a few billion years old, in accordance with the scientific findings and not at odds with Scriptural teaching. Thus the church would be those at discord, while the secular world would go on with the understanding of a billions-of-years-old earth, not thinking twice about it.
Now, all this is based on the assumption that the age of the earth will be evident in the examination of the earth itself, if done carefully and corroborated over a length of time. If one assumes the biblical notions that truth is absolute, that it is that which corresponds to reality (i.e., truth=facts), that the world is real and not an illusion, that real history preceded the present, and laws of physics are constant, then the age of the earth ought to be discernable via the scientific method.
Interestingly enough, the Bible itself refers to the mountains several times as being “ancient,” “age-old,” or “primeval.” One of these instances is in a blessing given to the tribes of Israel by Moses near the end of his lifetime in Deuteronomy 33:15. This would have been in the neighborhood of 1405 B.C. Now, according to a strict young-earth timeline
, adhering closely to the biblical timeline as calculated by Bishop James Ussher in his Annals of the World
, Moses would have said this about 2600 years after the creation of the world. This would be pushing the lower limits of “ancient” or “age-old” in my opinion, especially given the fact that pre-Flood humans could live naturally over 900 years. But it gets more difficult. Young-earth creationists believe that the topography of the present-day earth
was born out of the cataclysmic geological upheaval that occurred at the time of the Noahic Flood. This means, of course, that the age-old hills were not created during creation week, but in the aftermath of the Flood. This means that the hills were in fact no older than 943 years—less actually, since this is based on when the flood began, and does not take into consideration how long it took for the continental land masses to move and reshape the terrestrial landscape. Moses at this time was 120 years old. These ancient hills, then, were not eight times older than he was. Now, I might refer to Independence Hall in Philadelphia as old, but I would hardly refer to it as ancient. I get the distinct impression that Moses, the author of Genesis, believes these hills to be much older than 1000 years.