50 "In both": In both the earth and the heavens. This is a clear pointer to the fact that life does not only exist on the earth but on other planets as well.
51 That is, "Just as He has the power to scatter them, so He has also the power to gather them all together. Therefore, it is wrong to think that Resurrection cannot take place, and aII the former and the latter generations cannot be raised up and gathered all together. "