Matthew 11:27

"All things have been handed over to me by my Father, and no one fully knows the Son except the Father, nor does any one fully know the Father except the Son and all to whom the Son chooses to reveal Him.

John 17:3

And in this consists the Life of the Ages--in knowing Thee the only true God and Jesus Christ whom Thou hast sent.

1 John 5:20

And we know that the Son of God has come, and has given us understanding so that we know the true One, and are in union with the true One--that is, we are in union with His Son Jesus Christ. He is the true God and the Life of the Ages.

Treasury of Scripture Knowledge

Summary

The fear of the LORD is the beginning of wisdom: and the knowledge of the holy is understanding.

Bible References

The knowledge

Matthew 11:27
"All things have been handed over to me by my Father, and no one fully knows the Son except the Father, nor does any one fully know the Father except the Son and all to whom the Son chooses to reveal Him.
John 17:3
And in this consists the Life of the Ages--in knowing Thee the only true God and Jesus Christ whom Thou hast sent.
1 John 5:20
And we know that the Son of God has come, and has given us understanding so that we know the true One, and are in union with the true One--that is, we are in union with His Son Jesus Christ. He is the true God and the Life of the Ages.