Childlike Sonship

And all who heard Him were amazed at His understanding and His answers. When they saw Him, they were astonished; and His mother said to Him, “Son, why have You treated us this way? Behold, Your father and I have been anxiously looking for You.” And He said to them, “Why is it that you were looking for Me? Did you not know that I had to be in My Father’s house?” (Luke 2:47-49 NASB)

As a twelve year old boy, Jesus brought revelation to the teachers in the temple. He started off asking them questions but in the end it was them asking Jesus the questions. His answers astonished them.

When his parents eventually found him, Jesus responds with beautiful childlike simplicity "I had to be in my Father's house, doing his work". To him, it was so obvious.  This childlike simplicity and dependence did not leave Jesus as he grew up, it was how he lived his whole life:

He did his Father's will (John 6:38-40)
He came in his Father's name (John 5:43)
He stood with his Father (John 8:16) 
He only said his Father's words (John 8:28)
He lived to please his Father (John 8:29)
He showed us what the Father is really like (John 14:8-11)

The secrets of the Kingdom are hidden from the wise and intelligent and revealed to those, like Jesus, who have a childlike heart (Matthew 11:25). The Kingdom of Heaven belongs to little children (Mark 10:13). 

We are invited to live like Jesus and, to do so, means having the same childlike heart that Jesus had. For some, this can be too hard (like the rich young ruler) as it requires a complete turnaround and a transformation of our heart. 

Through his life, Jesus shows us that this is the only way. But it is the way of peace, rest and fruitfulness. 

Come to Me, all who are weary and heavy-laden, and I will give you rest. (Matthew 11:28 NASB)
I am the vine, you are the branches; he who abides in Me and I in him, he bears much fruit, for apart from Me you can do nothing. (John 15:5 NASB)