Insofar as Mormon theology implies a rejection of the classical metaphyics of a disembodied God outside of space and time; it seems to imply a different infinite: that space is infinite.
Because for there to be significance, there must be permanence, and permanence requires permanence of memory.
Since memory must occupy space, and there must be scope for progression; then space must not be limited – space must be infinite so that a growing reality can always accomodate permanent cumulative memories.
Either we must be always expanding into infinity; or else breaking into new infinities – those new universes of the King Follett dicourse, perhaps.
But, whenever we find ourselves referencing infinities; we should recognise that we have crossed the edge of our understanding.