For we men to be Obedient it should be simple, because all we need is but a little humility.

For Christ to be Obedient, however, is not so simple a matter.

It is much harder for Him to be Obedient than for Him to Create the Heavens and the Earth.

Why?

Because He has to Empty Himself of all the Glory and Power of His Divinity and take the form of a slave before He is even qualified to Obey.

Hence Obedience is Initiated by the Son of God.