The purpose of God for our lives is good. He has a good purpose for our lives. The Bible says that the thought of God towards our lives is not evil but good. God wishes us what is good. He has a good plan for our lives. This is why He didn't mind sending his only begotten Son to come and die for our sins. God, himself wants what is good for the people he created.
There is no allowance that God could have created us to live our lives as we please. No, He has a purpose of creating us. We one is a female or a male, the purpose why he or she exists is good. When we offer ourselves to do what is evil and sinful, we are working against what is God’s will for us. Our body parts are not for sinful indulgence. We are created to live holy and righteous and be doers of good works.
We are created to do good to our fellow men. We are to help those who we should help. We are to bless those who are in need of what we can offer. Good with is what we are called to do. Let us learn to be those who always do good.