Those who have gained the knowledge of the teachings of Jesus and seek to follow him fully, and in humility, can truly become whole, perfect and complete in Godliness.
Jesus was the perfect example through which we can know and see how God wishes us to act, live, to relate to others, and to die.
It is in this context that we can begin to understand the otherwise "difficult" saying of Jesus: “I am the way, and the truth, and the life. No one comes to the Father except through me" (John 14:6.) The rarely-quoted next verse reads: "If you had known me, you would have known my Father also. From now on you do know Him and have seen Him."
Seeing and learning without acting upon what we've seen and learned is pointless, and useless, leading to dead faith (James 2:20; 26.) We cannot hide our Light, or keep our Good Works to our selves, but instead, Jesus calls us to spread goodness and light to others (Matt. 5:16.) It is only by action that we spread God's Kingdom upon the face of the earth.
Jesus challenges us to be better than we are, not remain exactly as we were before we met him. The act of following him is meant to transform us; we are to be BORN AGAIN in service and obedience to God, with the example of God's chosen exemplar always before our eyes (John 3:3.)
Jesus didn't ever claim to be God. But he did claim to be Godly, and he was in fact perfectly in tune with God's will. He says of his Father, “I always do the things that are pleasing to Him.” (John 8:29.)
From his example, we need not look through a "dark glass" seeking vainly for what God wills for our lives. Jesus lays it out clearly, and says we CAN achieve it, and must attempt to do so. And we need not do it alone. God's servant Jesus teaches that we can rely on God's forgiveness when we falter on this journey, and must as a consequence forgive others who may offend us - in Godly imitation of both God and God's servant, Jesus (Matt. 6:14-15.)
The Good and Beneficial Message proclaimed by Jesus wasn't to simply have mere belief in his existence, but was a call to ACTIVELY serve God, to follow Jesus, and to love others just as we love ourselves (Mark 12:29-31.) His Gospel calls us to serve and act, not sit and contemplate, nor to simply admire Jesus nor even to worship him.
To be Good and Beneficial, the message of Jesus must spread goodness to others, and be beneficial to others. To turn a deaf ear to God's instruction through Jesus is detestable to God (John 9:31; Prov. 28:9.)
When we realize the wonderful gifts God has given all people from birth - but we have not used to benefit others until we knew Jesus - we should feel a great sorrow of realization, followed immediately by great joy that we now know the goal for which we were born, and the Good Works for which God has equipped us!
Jesus is a "Door" and a "Gate" by which we may walk through and glimpse the potential life for which God has equipped us - and has promised to continue to equip us. Let us have the courage to walk through this narrow passageway and enter into spiritually complete and morally useful lives together!