Jehovah God is the only all-knowing or omniscient being.
Psalm 139: 2-6 and Isaiah 40:13-14 proves this thought.
Psalm 139: 2-6 (Easy-to-Read Version)
You know when I sit down and when I get up.
You know my thoughts from far away.
You know where I go and where I lie down.
You know everything I do.
Lord, you know what I want to say,
even before the words leave my mouth.
You are all around me—in front of me and behind me.
I feel your hand on my shoulder.
I am amazed at what you know;
it is too much for me to understand.
Who could know the Lord’s mind?
Who could be his teacher or give him advice?
Did the Lord ask for anyone’s help?
Did anyone teach him to be fair?
Did anyone teach him knowledge?
Did anyone teach him to be wise?
Where are the answers to these questions posed in Isaiah? Read:
Isaiah 40: 18-22a (ERV)
Can you compare God to anything?
Can you make a picture of God?
No, but some people make statues from rock or wood,
and they call them gods.
One worker makes a statue.
Then another worker covers it with gold and makes silver chains for it.
For the base he chooses special wood,
a kind of wood that will not rot.
Then he finds a good wood worker,
and the worker makes a “god” that will not fall over.
Surely you know the truth, don’t you?
Surely you have heard.
Surely someone told you long ago.
Surely you understand who made the earth.
It is the Lord who sits above the circle of the earth.
And compared to him, people are like grasshoppers.
And besides creating the heavens, the earth and all living things with His Son (Genesis 1:26), He’s the only one that knows when humans will no longer exist in this sin cursed world we presently live in:
Matthew 24: 35-36
The whole world, earth and sky, will be destroyed, but my words will last forever.
“No one knows when that day or time will be. The Son and the angels in heaven don’t know when it will be. Only the Father knows.