For a thousand years in your sightContinuing in our acknowledgment of our own dustness, we can consider the passing of time in God's eyes.
are but as yesterday when it is past,
or as a watch in the night.
As I get older, time seems to pass ever faster. I used to contemplate why this would happen. Why would my age cause my perception of time to change? Think about it though. When you are 2 years old, a year is half of your life, but when you are 20 years old, a year is only 1/20th of your life. When you are 1 year old, a day is 0.27% of your life, but when you are 80 years old, a day is 0.00003% of your life. Each day is increasingly insignificant compared to your entire experience. So, just take that out to the infinite. God has always been. God always will be. A thousand years is but a moment to Him.
I also believe that God exists outside of time. Compound this with His omniscience, His omnipresence, and His omnipotence, and it is no wonder that He can work out every plan in perfect harmony with every other plan... without batting an eye.