Argument from Absoluteness

[Angrboda]

The 4-dimensional manifold bit essentially describes time as being static, and not dynamic. In other words, on that view there is no absolute simultaneity of events, but a relative one as per Einstein.

Right. If, from God's point of view, time is like an extra physical dimension, along which objects are oriented, then God is timeless and absolute, and absolutely unable to change or to judge anything.

That wasn't my point. As beings that are temporal processes, from our point of view, time is a relationship between independent moments, each distinct from the next. All references to time from our perspective are relative, stated using indexicals ('now', 'yesterday', 'next year'). However, if time is just another spatio-temporal dimension, then essentially everything that will happen has, in a sense, already happened; so globablly, time would be a static, absolute, unchanging dimension. So you have a perspectivist illusion; from one perspective, time is relational; from another viewpoint, it's absolute.