To explain how an eternal attribute concerns temporal events, theologians distinguish an eternal relation from a temporal designation of the object. Divine knowledge eternally encompasses what it concerns. When a temporal event occurs, its occurrence is a new state outside God, not a newly acquired report in His knowledge.
Example: Zayd's entering a house. It is eternally known that he will enter at a particular time. His entering then is originated, but the eternality of God's knowledge remains unchanged.
This distinction permits genuine change in created events without attributing change, deficiency, or acquired knowledge to God.