Jesus & The Father Are One And The Same In Essence
8 Philip said to Him, “Lord, show us the Father, and that will be enough for us.” 9 Jesus replied, “Philip, I have been with you all this time, and still you do not know Me? Anyone who has seen Me has seen the Father. How can you say, ‘Show us the Father’? -John 14:8-9 BSB
When Jesus had spoken these things, He lifted up His eyes to heaven and said, “Father, the hour has come. Glorify Your Son, that Your Son may glorify You. -John 17:1 BSB
4 I have glorified You on earth by accomplishing the work You gave Me to do. 5 And now, Father, glorify Me in Your presence with the glory I had with You before the world existed. -John 17:4-5 BSB
I will no longer be in the world, but they are in the world, and I am coming to You. Holy Father, protect them by Your name, the name You gave Me, so that they may be one as We are one. -John 17:11 BSB
But about the Son He says: “Your throne, O God, endures forever and ever, and justice is the scepter of Your kingdom. -Hebrews 1:8 BSB
The Father is in the Son and the Son is in the Father. Who is the Father? The Father is God. Let’s see how it looks like putting God instead of the Father and putting Jesus in place of the Son.
God is in Jesus and Jesus is in God (John 14:10-11). That’s what Hebrews 1:8 & John 14:10-11 reveals.
Here is an illustration to make the concept of the Trinity clear
The human body is comprised of three different components with one brain. You have the human flesh, the human bones, and the human spirit. If a person can separate himself into those three different components, the flesh, the bones, and the spirit, all three will contain the same brain. So, let’s say that Johnny separated himself. Whichever you speak to, his flesh, his bones, or his spirit, you will still be talking to Johnny because all three have the same brain.
The brain represents the mind, will, desires, and the essence of who God is. There is One essence existing as three persons. In other words, God exists as three different persons, but all three are the one true God. All three have the same mind. Whoever of the Godhead you talk to, you are talking to God Himself. That is what Jesus told Philip in John 14:8-9.
So God created man in His own image; in the image of God He created him; male and female He created them. -Genesis 1:27 BSB
Even the human body, in a way, contains the concept of the Trinity.
I hope that this will be a blessing to you and help you to understand the Trinity better, and that this will also help you to explain it to others with biblical references.