The Bible teaches that God is all-knowing or omniscient. The word “omniscient” comes from two Latin words Omnis signifying all, and scientia, signifying knowledge. When we say that God is omniscient it means that He has perfect knowledge of all things. He knows everything that has happened and everything that will happen. God knows things that humankind has yet to discover. This knowledge is absolute and not acquired. The omniscience of God means that He has perfect knowledge, perfect understanding, and perfect wisdom as to how to apply the knowledge.

(1 Samuel 2:3)
“Talk no more so very proudly, let not arrogance come from your mouth; for the LORD is a God of knowledge, and by him actions are weighed.”

(Psalm 139:1-6)
“O LORD, you have searched me and known me. You know when I sit down and when I rise up; you discern my thoughts from far away. You search out my path and my lying down, and are acquainted with all my ways. Even before a word is on my tongue, O LORD, you know it completely. You hem me in, behind and before, and lay your hand upon me. Such knowledge is too wonderful for me; it is so high that I cannot attain it.”

(Psalm 147:5)
‘Great is our Lord, and mighty in power; his understanding is infinite.”

(1 John 3:20) – John the evangelist wrote:
“For if our heart condemns us, God is greater than our heart, and knows all things
He Has Known Things From Eternity.”

(Acts 15:18)
Known to God from eternity are all his works

(Romans 11:33) – The Apostle Paul declared:
“Oh, the depth of the riches both of the wisdom and knowledge of God! How unsearchable are his judgments and his ways past finding out.”

(Proverbs 15:3)
“The eyes of the LORD are in every place, keeping watch on the evil and the good
The psalmist declared.”

(Psalm 147:5)
“Great is our Lord, and abundant in power; his understanding is beyond measure
It Is Not Like Human Knowledge.”

(Isaiah 55:8, 9)
“For my thoughts are not your thoughts, nor are your ways my ways, says the LORD. For as the heavens are higher than the earth, so are my ways higher than your ways and my thoughts than your thoughts.”

(Psalm 50:21)
“These things you have done and I have been silent; you thought that I was one just like yourself. But now I rebuke you, and lay the charge before you.”

(Job 37:16) – In the Book of Job a man named Elihu said.
‘Do you know the balance of the clouds, those wondrous works of him who is perfect in knowledge?”
(Job 21:22)
“Can anyone teach God knowledge, in that he judges those on high?
(Job 11:11)
“For he knows knoweth vain men: he seeth wickedness also; will he not then consider it?

(Romans 11:34) – Paul stated the same truth.
“For who has known the mind of the Lord, or who became his counselor?
Neither does God have to investigate anything.”

(Exodus 3:7)
“The Lord said, “I have surely seen the affliction of my people who are in Egypt, and have given heed to their cry because of their taskmasters, for I am aware of their sufferings”

(Acts 15:18)
Says the Lord, who makes these things known from long ago.

(Isaiah 46:10)
Declares the end from the beginning, and from ancient time’s things which have not been done, saying, ‘My purpose will be established, and I will accomplish all my good pleasure.”
(Genesis 18:18, 19) – God predicted of Abraham
“Abraham will surely become a great and powerful nation, and all nations on earth will be blessed through him. For I have chosen him, so that he will direct his children and his household after him to keep the way of the LORD by doing what is right and just, so that the LORD will bring about for Abraham what he has promised him.”

(2 Kings 8:10) – Elisha the prophet made the following prediction.
“Elisha answered, “Go and say to him, ‘You will certainly not recover’; but the LORD has revealed to me that he will in fact die” His Eyes See All Things.”

(2 Chronicles 16:9)
“For the eyes of the Lord move to and fro throughout the earth that he may strongly support those whose heart is completely his.”

(Jeremiah 16:17) – Jeremiah the prophet:
“For my eyes are on all their ways; they are not hidden from my face, nor is their iniquity concealed from my eyes.”

(Zechariah 4:10) – Zechariah recorded:
“For who has despised the day of small things? But these seven will be glad when they see the plumb line in the hand of Zerubbabel these are the eyes of the Lord which range to and fro throughout the earth.”

(Psalm 94:9)
“Does he who implanted the ear not hear? Does he who formed the eye not see?
His Knowledge Is Denied By The Wicked.”

Scripture informs us that the wicked question the nature and extent of God’s knowledge. They question how God is able to know everything.

(Psalm 73:11, 12)
“And they say, “How can God know? Is there knowledge in the Most High?” Such are the wicked; always at ease, they increase in riches.”

(2 Peter 3:7) – God Is Perfect In Judgment
“But the heavens and the earth, which are now, by the same word, are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.”

(Matthew 12:47) – Jesus said:
“For by your words you will be justified, and by your words you will be condemned.”

(Matthew 6:8) – There is great comfort for the believer in the omniscience of God.
“Be not ye therefore like unto them: for your Father knoweth what things ye have need of, before ye ask him,”

(1 Chronicles 28:9) – The Lord searches every heart.
“And you, my son Solomon, acknowledge the God of your father, and serve him with wholehearted devotion and with a willing mind, for the LORD searches every heart and understands every motive behind the thoughts. If you seek him, he will be found by you; but if you forsake him, he will reject you forever The Believer Is Secure in This Knowledge.”

The believer must be secure in the knowledge that God knows everything about them.
(1 John 3:20) “Whenever our hearts condemn us; for God is greater than our hearts, and he knows everything.”