>>3449
>A mortal coil isn't very significant to an eternal being
That's irrelevant. His human nature died a fully human death and was resurrected by God the same way that we will all be resurrected one day. The human death of a sinless human(which Christ was, since He is both fully God and fully man) was all that was required to atone for human sins. Moreover, the resurrection was necessary for our salvation because if Christ had not defeated death we ourselves would not be able to rise again as He did. I know this can be confusing, but this should be able to help:
http://newadvent.org/summa/4.htm
https://www.sacred-texts.com/chr/calvin/inst/index.htm
Read "The Incarnation" and "The Life of Christ" sections in the first link and the "Book Second" section of the second link.