This is an acceptable argument. But it has big problem.
So, you TE people would accept that the second coming of the Lord could be 10 million years from now according to the world time (Crawfish suggested that too). We understand that the evolution process is evaluated according to the world time. So, we could continue to evolve into other species and still waiting for the salvation.
That is really weird. I don't think any Christian would like this particular idea of Christianity.
Ummm Juve, what part of no one knows the day or the hour do you not understand?
You have built up a false dichotomy here. You think 10 million years is impossible because we would have evolved into a different species, but you miss the point that it is God who decides when the time is right, when the fullness of time has come. If 10 million is too long because of evolution, (though wouldn't our descendants still be human the way we are still mammals?) but if it was too long, don't you think God would have called time before it got too late? If your concern about 10 million years is actually correct, why would God wait that long?
Incidentally if you had suggested to a first century believer that we would still be waiting after two thousand years, he would have looked at you as if you had two heads.
But nothing in TE, or 2Pet 3, says that the timescale of Christ's return has to equate to the timescale of creation. 2Pet 3:8
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, warns us against setting calendars and being disappointed when they don't work out. It does not give us a new calendar to calculate Christ's return based on a scientific analysis of how the world was created.
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By the way, Assyrian, remember our discussion on the radiometric dating and time? What you said here is really one of the important reason that I do not accept the radiometric dates as true ages. It is only an apparent age to us and is not adequate to be an evidence of an old earth. (this is an off topic comment, please do not make strong argument on this).
You are the only one who thinks evolution sets any sort of date for Christ's return. If that is one of your main reasons for rejecting radiometric dating then you need to look at the evidence again.
What you are dealing with here is a question of mindset. At present you have a YEC mindset, and when you look at Evolution and eschatology you approach both of them from the same mindset. Let me illustrate:
YEC mindset:
We understand God's timetable, we can work out when the earth was created and we can work out when Christ will return to within about a year/10 years/a generation (varies with denomination and current geopolitical situation)
YEC considers Evolution:
OK so the world is billions of years old and hominids have been on a few earth million years. Now we understand God's timetable and the timescale he uses. Christ will not be back for millions of years.
TE simply says God has not told us when Christ is coming back.