What are the works that God requires?

There is one in you. Sent to you. He has always been there. Near you. Speaking to you. He is good. He is right. He has been with you since the beginning. He has been trying to show you how to live, how to speak, where to walk, how to see. Through all your endless changes; from the “one cell” of you,  to the mass of cells of which make up you now; his face, his voice has been constant—the rock around which you flow.  But there is another: an adversary of the one sent by God. He says, “Enough!  You are old enough. You are grown enough. You have sufficient strength and knowledge to create yourself in your own image. Worship what you want. ‘Want’ what you want. Follow rules. Even better, have a morality that you can manipulate to your constant advantage over others. Just know that it doesn’t matter anyway. But, if you suffer—when you suffer—when you feel the injustice and unfairness of this world, when you feel betrayed; it is not by me (I’m on YOUR side)...and certainly, it is not you (YOU are not supposed to suffer). It is God and His creation that are to blame.”

What are the works that God requires?
“The work of God is this: 
To believe in the one He has sent.”
John 6:28 and 29