He already did, and He already revealed to John (in the book of Revelation) how he did.

Time as we understand it is an artifact of our fallen world, we cannot even reason about time without death. We have no idea what a “deathless time” would even look like, but we will.

Almost all of the church fathers delved deeply into this topic, and unfortunately our modern view tends to ignore this and just presuppose a Newtonian and mechanistic view of time (which can be falsified even under its own system).