There is within us an ideal person - the person God created us to be, and one that God KNOWS we can be. When we allow the inauthentic and false parts to be chipped away, our authentic and true selves emerge.
Today, when we hear that we need to be "authentic," many imagine that this has something to do with our clothing and how we present ourselves to others. While that's somewhat true, in our Faith, wearing a more authentic set of clothes can be a new, trendier mask that continues our false beliefs and attitudes.
Jesus often spoke of being "true" - by which he meant we must be genuine and authentic both on the inside and out.
Jesus called out the Pharisees for being inauthentic. They were like tombs on the inside and all bright and shiny on the outside.
He wasn't calling for the Pharisees to also become rotten on the outside, as well as on the inside, so that they "matched" - although that certainly would have made them "true to themselves" in one sense. He was instead calling on them to carve away all the non-ideal portions of their attitudes, beliefs and behaviors.
Our false and ungodly parts have perhaps been with us for many years; attitudes, beliefs and behaviors that are false and hinder our spiritual growth have encrusted us like shavings of marble that cover our true selves and keep us from God, as well as from Godliness.
But draping trendy clothing on a slab of marble that is encrusted like this will not help. How silly it would be for an artist to simply cover up a slab of marble with a sheet or a jacket and say "I'm done!" or "It's fine just the way it is!"
And yet, there are those in christianity today who believe simply wearing cooler clothing, using more "relevant" cultural references and having a rock band perform during a church service will make what they're saying better and truer. It does not.
Like the Pharisees, who took away the “key to knowledge,” and failed to guide others to it (Luke 11:52) many today claim that the path to salvation is easy, and the gate to Heaven is wide - requiring no changes WITHIN us and nothing FROM us. They are not speaking to us about the knowledge of true and authentic Righteousness Jesus calls us to seek, so that we may achieve spiritual completion in Godliness by transforming our behavior.
No, instead, they condemn and even ridicule the Good Works Jesus tells us we must perform in order to become lights to the world (and to achieve salvation with God eternally.) And they are doing it, not with the Puritanical clothing, stern words and majestic organ music of past generations, but with blue jeans, accompanied by rock music and a light show.
One has to think that it's not even the hip clothing and shiny, large buildings that are offensive to God - because styles of clothing and music certainly change - but it's the wicked lies told by the hiply-dressed pastors within them that are truly offensive. Spoiled milk poured into new cartons is still spoiled.
We must have the courage to embrace the Authentic Gospel in order to become our Authentic Selves.
Jesus alone provides us this Authentic Gospel. He said of his own teachings, "The one who speaks on his own authority seeks his own glory; but the one who seeks the glory of him who sent him is TRUE [authentic/genuine] and in him there is no falsehood." John 7:18 (ESV)
Jesus calls us to be authentic, and that starts with knowing God - the one, authentic, indivisible God of Israel. It starts with knowing the man Jesus, whom God chose and commissioned from among us human beings to be our template and example to follow in all things.
Jesus calls us to be fully transformed and changed by his teachings, and these teachings of his are the only basis for an authentic faith in his God and our God.
These words of Jesus call us to action, not just to change our clothing, but to change our lives, to change our attitudes, to change our behaviors, and to shed our false but stubborn beliefs, so that we may become the authentic human beings God wants us to become.