The heart of love that you develop with the brethren overflows the bounds of the fellowship, to God and then to those God also loves -- your neighbors.  These truly are the ultimate commandments.  This the ultimate fruit God is looking for in our lives.  Nothing else is as important.  1 Cor 13:1-3 states:  "If I speak in the tongues of men and of angels, but have not love, I am only a resounding gong or a clanging cymbal.  If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing. If I give all I possess to the poor and surrender my body to the flames, but have not love, I gain nothing."

"One of them, an expert in the law, tested Him [Jesus] with this question: ‘Teacher, which is the greatest commandment in the Law?’ Jesus replied: ‘Love the Lord your God with all your heart and with all your soul and with all your mind.’ This is the first and greatest commandment. And the second is like unto it: ‘Love your neighbor as yourself.’" – Matthew 22:35-39  

"For God so loved the world that He gave His only begotten Son, that whosoever [in the world] would believe on Him would not perish but have everlasting life." – John 3:16

Only now can your heart truly love God and your neighbor. Up to now, you could do good for them and God; you could even have God’s perspective of heaven and the world, but that isn’t the same as "love." (1 Cor. 13:2)  Loving your neighbor like God loves them takes all the preceding steps.  It can only be done by the power of God working through the promises of God.  It takes walking through these steps of maturity.

Ultimately we were given all this so we would bear fruit.  That's our purpose.  Rom 7:4 states:   "So, my brothers, you also died to the law through the body of Christ, that you might belong to another, to him who was raised from the dead, in order that we might bear fruit to God."    Jesus said in John 15:1-5:  "I am the true vine, and my Father is the gardener. He cuts off every branch in me that bears no fruit, while every branch that does bear fruit he prunes so that it will be even more fruitful. You are already clean because of the word I have spoken to you. Remain in me, and I will remain in you. No branch can bear fruit by itself; it must remain in the vine. Neither can you bear fruit unless you remain in me.  I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing. If anyone does not remain in me, he is like a branch that is thrown away and withers; such branches are picked up, thrown into the fire and burned."