Jesus is everything, and rightly demands everything

Colossians 1:15-17
He is the image of the invisible God, the firstborn of all creation. For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him. And he is before all things, and in him all things hold together.

Hebrews 1:2-3
…his Son, whom he appointed the heir of all things, through whom also he created the world. He is the radiance of the glory of God and the exact imprint of his nature, and he upholds the universe by the word of his power.

1 Corinthians 8:6
there is one God, the Father, from whom are all things and for whom we exist, and one Lord, Jesus Christ, through whom are all things and through whom we exist.

Romans 11:36
For from him and through him and to him are all things. To him be glory forever. Amen.

John 11:25
Jesus said to her, “I am the resurrection and the life. Whoever believes in me, though he die, yet shall he live and everyone who lives and believes in me shall never die."

It is the One who created all things for Himself, who upholds the universe by the word of His power - it is He who clothed Himself with flesh in order to lay down His own life to redeem His fallen people.

Everything is from Jesus and for Jesus.

It is Jesus who is -

The Resurrection and the Life.
The Lamb slain from the foundation of the world.
The Way, the Truth, and the Life.
The only Good Shepherd, who lays down his life for the sheep.
The Bread of Life, and the Living Water.
The Light of the World.
The true Vine.

Jesus is supreme - pre-eminent in everything (Col.1:18).

Jesus is everything; everything exists because of Him, was made to serve His purposes, and is kept in existence by His hand.

It is no wonder that the entire Bible is about Jesus; the OT points to Him, the NT teaches what He did for us and who He is more specifically.

It is also no wonder that one cannot claim to be a disciple of Christ while trying to serve sin or self. There is only one Lord and Master of the universe; those who serve Him must be completely yielded to Him, as the whole universe is.

You were created for Jesus.

It is impossible to be His disciple and still try to rule your own life; this would be like joining the marines while being contracted to play on a professional sports team.

You can have only one Master, and it is an all-or-nothing choice.
He will have all of you - all your time, energy, will, choices - or He will not have you at all.