"You Are My Friends If You Do Whatever I Command You" John 15:14

Throughout the gospels, Jesus teaches the original twelve disciples those things that they must employ to become one with He and the 

Father, who are One. 

His disciples must "say to this mountain, 'Be removed and be cast into the sea', and doubt it not in his heart, but believes that those 

things he says will be done (the removal of this mountain; the removal of any confidence in the flesh that he might have), he will have whatever he says." (Mark 11:23)

His disciples must "say to this mulberry tree, 'Be pulled up by the roots, and be planted in the sea', and it would obey you" (removing the roots of offense taken by the sin of a brother). 

(Luke 17:1-6)

His disciples: abiding in Him and His words abiding in them, "will ask what you desire, and it shall be done for you. By this My Father is glorified, that you bear much fruit; so you will be My disciples." Earlier in that chapter, Jesus says, "I am the true vine, and My Father is the vinedresser. Every branch in Me that does not bear fruit, He takes away; and every branch that bears fruit He prunes, that it may bear more fruit." (John 15:1-8) Therefore, we MUST ask the vinedresser for His pruning, so that which is producing some fruit will produce much.

These works of faith in Christ Jesus will remove those things that are being shaken so "that the things which cannot be shaken may remain." Therefore, since WE ARE RECEIVING a kingdom which cannot be shaken, let us have grace, BY WHICH we may serve God acceptably with reverence and godly fear".  
(Hebrews 12:27,28)

His words and commands are backed by the grace, the empowerment, of His Father's kingdom. In these commands, He explains how to be free from the hindrance that resists His calling.