Infinitely more impressive

John 2:24-25 But Jesus on his part did not entrust himself to them, because he knew all people and needed no one to bear witness about man, for he himself knew what was in man.

John Piper comments in a sermon “He Knew What Was in Man”

Three statements. First, the sweeping general statement in 2:24: “he knew all people.” Second, the specific application of that statement to people’s private, inner life in 2:25: “he himself knew what was in man.” Third, the implication of that in 2:25: “he needed no one to bear witness about him.”

Jesus Knows All About All People

So the doctrine we may draw from this is that Jesus knows all about all people. No person is excluded from his knowledge, and no part of our life is excluded from his knowledge. He knows everybody—and everything about everybody. Here’s what Jesus will say in John 6:64: “There are some of you who do not believe.” And John adds, “For Jesus knew from the beginning who those were who did not believe, and who it was who would betray him.” The heart of Judas was open before Jesus. Jesus was not surprised when his betrayal came.

Let this truth about Jesus sink into your heart. If you have ever been impressed with any man’ knowledge about people or wisdom in discerning motives and explaining actions and predicting behaviors—if any character in fiction or person in history or living counselor or scholar has ever impressed you, the knowledge of Jesus should be infinitely more impressive.

No Secrets from Jesus

Perhaps the glory of his omniscience will come home to us more fully if we draw out a few personal implications. It means that there are no complete secrets in your life. You may have succeeded in hiding something all your life from everyone on this earth. But you have not hidden it from Jesus. The person who matters most knows most. The person whose judgment about you is all important knows all. Let that sink in. You are totally known. Totally. There is not the slightest part of your heart unknown to Jesus, at this hour, and every hour.

Therefore, there is always at least one person you must relate to who knows everything about you. You may be able to look at others in the face and know that they do not know  certain things about you. This shapes your relationship. But there is one who when you look him in the face sees totally through you. If you relate to him at all, you relate as one utterly laid bare. Utterly known. What an amazing relationship! There is one, and only one, who actually and totally knows you. Nobody else even comes close. Your spouse’s knowledge of you, or your best friend’s knowledge of you, compares to Jesus’ knowledge of you like first-grade math to quantum mechanics. You are fully known by one person, Jesus Christ.

One Human Who Knows

Therefore, you always have someone to go to for help in knowing who you are. One of the great longings of the human soul is to understand ourselves. Who are we? What is our nature? What sort of being are we? What is our deepest thought and feeling? What are our true and deepest motives? What are the relationships deep inside of me between knowing and feeling and willing and doing?

There is one human who knows the complete answer to all these questions: Jesus Christ. Do you recall Peter’s three answers to Jesus’ question after the resurrection, “Do you love me?” Jesus asked him three times, probably because Peter had denied Jesus three times. Peter said the first time, “Yes, Lord; you know that I love you.” He said the second time, “Yes, Lord; you know that I love you.” He said the third time, “Lord, you know everything; you know that I love you” (John 21:15–17). There is always one person who knows your heart perfectly. Knows it better than you do. Jesus Christ.

One Who Is Always Willing to Love You

Therefore, you always have a person who is willing to love you, knowing absolutely everything about you. The reason I say he is “willing to love you” is that Jesus has a special covenant love for those who trust him. He doesn’t love everybody in the same way. Listen to the way he prays in John 17:9, “I am praying for them. I am not praying for the world but for those whom you have given me, for they are yours.” In other words, Jesus intercedes for those whom the Father has given him. These are his friends. These are his disciples. These are his sheep. These are the children of God. These are those who are born again. These are those who believe. And are you in that number?

“To all who did receive him, who believed in his name, he gave the right to become children of God” (John 1:12). If you receive him, there will always be one person who will love you knowing everything, absolutely everything about you. You will say with the disciples in John 16:30, “We know that you know all things and do not need anyone to question you; this is why we believe that you came from God.”

I pray that this glimpse of the glory of the omniscience of the only Son of the Father will move you to admire him more than anyone, and love and trust him and follow him.