Luke, this has been explained before, but I will explain it again since you are my favorite.Luke wrote: ↑June 18th, 2022, 1:06 pm Helaman 12
14 Yea, if he say unto the earth—Thou shalt go back, that it lengthen out the day for many hours—it is done;
15 And thus, according to his word the earth goeth back, and it appeareth unto man that the sun standeth still; yea, and behold, this is so; for surely it is the earth that moveth and not the sun.
"If he say" is a hypothetical. It means he does not say.(until he does)
For example, if I were to say: If I take 3 more steps forward, I will be standing in the street.
Am I standing in the street? No, not until I take 3 steps forward.
If God were to say to the earth 'move', then it would move. Because God does not say move, it doesn't move.
If he were to say this, it would appear that the sun stands still. Because he does not say this, it is the sun that moves (just like we see in the sky).
The verse in Alma referencing motion would be applicable to any geometric world view, considering the oceans, rivers, and winds are always in motion, even if the Earth were a stationary pizza slice.