“For he spoke, and it came to be; he commanded, and it stood firm.”
Likewise, Psalm 148:5 conveys God’s creative activity in terms of the instantly completed outcome of His authoritative decree:
“For he commanded and they were created.”
The time question may also be deduced logically—imagine two students confronted by a difficult problem to solve. One of them is highly intelligent, the other only just managed, with great difficulty, to finish school. Which one will complete the task more quickly? The intelligent one, of course!
We readily recognize that with increasing intelligence I, less time T is required for the solution. This could be mathematically expressed as, for example, T = f(I), which is a hyperbolic function of the type T is proportional to 1/I, i.e. T ∝ 1/I.
The curve described by the equation T = 1/I is known as a hyperbola.
God nonetheless took considerable time to create—six entire days, with evening and morning. He did so for this single reason, He wanted to establish an analogy to accompany the following commandment of His, brought down from Mt Sinai by Moses:
“Six days you shall labor, and do all your work, but the seventh day is a Sabbath to the LORD your God. On it you shall not do any work” (Exodus 20:9–10).
In verse 11, this divine analogy is expressed:
“For in six days the LORD made heaven and earth, the sea, and all that is in them, and rested on the seventh day.”
When contemporary Christian writers reject a six-day creation in favor of long ages, they are being mathematically illogical and at the same time Biblically incorrect, because they are thereby insinuating that God only has limited power.
“For you have rejected the word of the LORD, and the LORD has rejected you” (1 Samuel 15:26)." CMI