We can know God

Author A. W. Tozer begins his book, The Knowledge of the Holy, with this assertion:
“What comes into our minds when we think about God is the most important thing about us.”
He goes on to say this: “We tend by a secret law of the soul to move toward our mental image of God.” Certainly his words reflect the truth in Psalm 115:8 concerning those who worship idols,
“Those who make them will become like them, everyone who trusts in them.”

If Tozer was right, then Martyn Lloyd-Jones was also right when he said, “Our supreme need is to know God” (God’s Ultimate Purpose [Baker], p. 342). He understood our need to know God well, to know Him deeply,
to know Him truly, as He is revealed in His Word. This is the truth that elevates the Bible in our hearts
and minds: God has chosen to reveal Himself to mankind through God-inspired writings.
He does not hide from us, but discloses His character and nature and plans clearly. 

We can know God! And to know God is to possess eternal life. 

"And this is eternal life, that they know you, the only true God, and Jesus Christ whom you have sent."
John 17:3

how can we know God?

This is an amazing thought - that we could know the God Who Is. The Bible tells us about this God, Who calls Himself, "I AM", and explains everything we need to know to know God.

The Bible reveals to us that we are all sinful (Romans 3) and that we miss the standard of holiness God requires for fellowship with Him. We also learn that the punishment of our sin is death (Romans 6:23) and that we will perish eternally without God unless we are forgiven for our sin. God has provided a way of forgiveness through Jesus' sacrifice on the cross in our place, and He offers forgiveness to anyone who calls in faith upon Jesus, and accepts and receives His promise. 

So, to truly know God, we must first receive Him into our lives.
"As many as received Him, to them He gave the right to become children of God, even to those who believe in His name" (John 1:12). 

Nothing is of greater importance than understanding this truth when it comes to knowing God. Jesus makes it clear that He alone is the way to heaven and to a personal knowledge of God:
"I am the way, and the truth, and the life; no one comes to the Father, but through Me" (John 14:6).

Once we believe what Jesus did for us and trust His promise, we can begin the journey of knowing God in a personal way. The starting point in this journey is understanding that the Bible is God's Word and is His revelation of Himself, His promises, His will. The Bible is essentially letter written to us from a loving God who created us to know Him intimately. What better way to learn about our Creator than to immerse ourselves in His Word, revealed to us for this very reason?
The Bible explains everything we need to know pertaining to life and godliness, so it is important to continue studying and living according
to God’s Word throughout our lives.

These are the keys to truly knowing God. There are more, of course, such as prayer, fellowship, service, and worship. But those actions can only follow receiving Jesus and believing His promises. Then our lives can be filled with God, and we can experience knowing Him intimately and personally.