Timeless
God exists in a realm of light (1 John 1:5), which suggests that things happen in that realm at or faster than the speed of light.
That may have been the concept that the King David was trying to present in Psalm 90:4 and
Peter in 2 Peter 3:8
But do not let this one fact escape your notice, beloved, that with the Lord one day is like a thousand years, and a thousand years like one day.
In Peter's limited understanding of the universe that was perhaps the closest he could get to expressing the concept that as you move at the speed of light time appears to slow or even stop.
This gets deep/interesting when you consider the possibility that things we perceive because we exist in time as happening long ago, from God's perspective, outside of time, are happening now.
It's how you get Jesus speaking of seeing Lucifer falling from heaven as lightning in the past tense, while Revelation 12 doesn't have this event as happening until the tribulation.
If you study astronomy you can get a bit of a glimpse of the idea of eternity (timelessness) as it relates to light.
For example when you look deep into space you are actually viewing the past. The light from some of those objects in space comes from so far away it took hundreds, thousands of years to reach Earth.
The sun for example is 8 light minutes from Earth.
So when you see the sun in the sky you are actually viewing it as it looked 8 minutes ago and it won't be until 8 minutes later that you will know if the sun even still existed when you viewed it.
The star Sirius is 8 light years from earth. That means 8 years from now the light Sirius is shining at the exact moment you read this will finally reach Earth, or 8 years from this moment we may look into the night sky and find that Sirius exploded and went super nova at this exact moment and that it no longer exists.
Where God exists is outside of time. So to Him what we perceive as taking a long time to happen is instant. He can view every inch of the universe simultaneously and literally see the big picture as the grand symphony of sight and harmony He created.
I think one of the mistakes we make is confusing immortal (living forever) with eternity (existing outside the constraints of time).
It's likely that in heaven things happen at the speed of thought.
Hence the reason Jesus warned to simply think something angry is murder etc. and Paul states that "We take every thought captive so that it is obedient to Christ".
It's perhaps the reason God kicked Adam out of Eden after he had knowledge of good and evil. If Adam at of the tree of life and lived forever and passed into the timeless state of eternity, without having mastery of his thoughts, he would have been at least a nuisance of galactic proportions making things happen just by thinking them.
It's how Jesus can say he's coming "soon" and not be lying.
It's soon from that heavenly vantage point, it's been 2000 years when viewed from within the shackles of time.
Then He arose and rebuked the wind, and said to the sea, “Peace, be still!” And the wind ceased and there was a great calm.
