Why do you suppose it was so essential for Jesus to make sure that His disciples knew who He really was?  It wasn't okay for them to think of Him as a prophet, a good person, or a wise religious leader.  It was mandatory that they clearly understood that He was the Son of God.
 
Jesus came to this earth not only to tell us who He was, but He also came to show us who we really are.  Let’s face it; it can get very cloudy down here on earth.  There are many days that we think we are not worth much at all.  We can become hopeless thinking that we can never be enough for our boss, our spouse, and our friends.  We look at ourselves and think, "I'm just not measuring up here.  I don't have what it takes.  I'm not appreciated, so I must not be worth much."  Nothing can be further from the truth.  Jesus wants you to know who He is so He can tell you who you are.  You are God’s child.  You are His beloved.
 
I love the way Jesus knew who He was when the world was telling Him He was something different.  He didn't listen to the crowds who saw Him as a miracle maker.  He didn't derail God’s plan and do more and more miracles to get the crowds to grow larger and larger.  He didn't throw up His hands and refuse to talk to the Pharisees anymore when they dished out the ultimate insult by calling Him the Son of Satan.  He simply stood firm and exposed the absurdity of their thinking.  Jesus never wavered while He lived in this world because He knew who He was. 
 
I find myself needing to reconnect with who I really am on a daily basis. It is so easy to listen to the voices in my head telling me that I'm not good enough.  I need to accomplish more; I need to do better.  According to my Heavenly Father I am His dearly loved child.  I am the beloved.  I love the way John the disciple refers to himself as the beloved disciple.  I'm sure this was not an easy spiritual development.  I'm guessing that there were days that he felt overwhelmed with the needs of the world too.  I bet that he doubted he was doing a great job in carrying out Jesus’ message when he saw his converts persecuted and killed for their belief.  I've got to believe there were days that he doubted his belovedness because of things that were going on in the world. 
 
When you find yourself doubting that you are beloved, begin your journey home by first reflecting on who Jesus is.  Remember that He is the One and Only, the One who takes away the sin of the world.  Jesus is the one whose death made it possible for us to receive the Spirit of God in our lives.  It is through the Spirit that we call out to God as Abba—Daddy God.  Once you begin to reflect on the Trinity and what they say about themselves and us, you will once again get in touch with who you are.  You are the dearly beloved of the Father.  As He says also in Hosea, “I WILL CALL THOSE WHO WERE NOT MY PEOPLE, 'MY PEOPLE,' AND HER WHO WAS NOT BELOVED, 'BELOVED.'" (Romans 9:25).  You will know that you have fully accepted your beloved state when you are being an imitator of God according to Ephesians 5:1.  Live like the beloved child you are today.