hello my brother,God is the father,and he is in heaven ,when jesus was in heaven ,GOD asked ,who shall He send to go and die for the sins of the world,Jesus answered saying father here i am send me,God is the father and the son can represent his father,that is why Jesus said to his disciples in the bible that anyone who see him has seen the father ,because his father sent him.so jesus volunteerly came to die for us not the father.jesus did not sin when he was on earth,but he said that no one is righteous except God who is in heaven.that doesn't mean that he is a sinner,but he did so that the people would not say that he is claiming righteousness.