Because no relationship can survive without spending quality time together and God is no different. He gave us 6 days to get all our works and labors done Exo 20:9 and only asked for one day back dedicated to Him Isa 58:13, the seventh day Sabbath Exo 20:8-11 so He can bless and sanctify us Eze 20:12 Isa 56:1-7 as we can't sanctify ourselves.you know how Hebrews makes the argument that the priesthood of the Law had to keep making the same sacrifices over and over, showing that it could never actually take away sin?
but Christ died once for all?
something eats at me every saturday - if i truly had rest, why do i have to do this again next week?
Seems like a similar question posed to Eve in the Garden. His ways are above our ways and through faith we should live by His every Word. Mat 4:4 even if it doesn't make sense to us.
In God's rest there is no rebellion to Him, just peace Isa 48:18