3 Basic Purposes for Authority

To Grow in Wisdom and Character

The only recorded incident in scripture that references the life of Christ between the ages of two and thirty was a discussion with His parents which involved authority. This occurred when He was twelve.
Should He follow his spiritual calling and be about His Father's business or should He become subject to His parents and leave His ministry at the temple?

And he said to them: How is it that you sought me? did you not know, that I must be about my father' s business? (Luke 2:49)
He chose to do the latter, and the following verse reports,
And Jesus advanced in wisdom, and age, and grace with God and men. (Luke 2:52)

He advanced in these things, while being under the authority of His parents.

To Gain Protection From Destructive Temptations

The nature of submission is not "getting under the domination of authority but rather getting under the protection of authority".

Authority is like an "umbrella of protection", and when we get out from under it, we expose ourselves to unnecessary temptations which are too strong for us to overcome.

Because it is like the sin of witchcraft, to rebel: (I Kings 15:23)

Both Terms, Rebellion and Witchcraft, have the same basic definition which is- subjecting ourselves to the realms and power of Satan. So when someone rebels against the Authority that God has put in there lives, it is just like witchcraft. They are subjecting themselves to the realms and power of Satan.

To Receive Clear Directions for Life Decisions

Correct decisions are based on faith; that is, visualizing what God intends to do.

For all that is not of faith is sin. (Romans 14:23)

One of the most basics aspects of faith is to realize how God gets His directions to us through those He has placed over us.
After the centurion asked Jesus to come and heal his servant, it occured to him that just as his life was structured around a "chain of responsibility," so the kingdom in which God operates must have a similar structure of authority.

When Jesus realized that he understood this, Jesus "marvelled; and said to them that followed him: Amen I say to you, I have not found so great faith in Israel." (Matthew 8:10)

Our faith multiplies as we see how God speaks to us through those He has placed over us.