I have been reading through the book of Luke lately and many interesting things are surfacing.
In Chapter 9 Jesus gives the Disicples power to preach and heal.
Luke 9:1,2: Then he called his twelve disciples together, and gave them power and authority over all devils, and to cure diseases. And he sent them to preach the kingdom of God, and to heal the sick
The work of the Disciples comes to the notice of Herod and causes him perplexity. Next Jesus feeds the 5000 which led to a move to seek to crown Him as King.
It is at this point that Jesus does an identity check with the disciples. They were in danger of being carried away by influencing the king and seeing that their man - Jesus was stirring the crowd to political and social change. This ragged little band of disciples had hit the motherload and now they were apparently moving into a powerful circle of influence.
Jesus asks them concerning His identity. In Matthew Peter states
Matthew 16:16: And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
This "Son of the Living God" is the one who Satan has been trying to kill since before this world was created. Any profession of the Son of the Living God will meet with fierce opposition and will not place you in a powerful sphere of influence for very long. Notice the words of Jesus.
Luke 9:22-25 Saying, The Son of man must suffer many things, and be rejected of the elders and chief priests and scribes, and be slain, and be raised the third day. And he said to them all, If any man will come after me, let him deny himself, and take up his cross daily, and follow me. For whosoever will save his life shall lose it: but whosoever will lose his life for my sake, the same shall save it. For what is a man advantaged, if he gain the whole world, and lose himself, or be cast away?
Jesus makes it plain that if they truly believe that Jesus is the Son of the living God, they will face hardship, conflict, difficulty and sorrow, for Jesus is a "man of sorrows and acquainted with grief" yet we can be of good cheer for He has overcome the world.
Then Jesus gives this warning:
Luke 9:26: For whosoever shall be ashamed of me and of my words, of him shall the Son of man be ashamed, when he shall come in his own glory, and in his Father's, and of the holy angels.
To be ashamed of Jesus means at its heart to be ashamed of the Son of the Living God, the one who comes in His Father's name. The world looks for who comes in His own original life unborrowed and underived, but the Son of the Living God comes in the name of His Father. All He possesses came from His Father.
If we are ashamed of this Jesus then He will be ashamed of us when He comes. To embrace the name of the Son of God does cost greatly and involved sacrifice and discipline, but I will faithfully seek to endure this for my own character development according to God's will than ever face the sad state of Jesus being ashamed of me when He comes. May that never happen to any of us.