Who said so? You or G~d? Show me where He changed, please. Chapter and verse.
Ps 15:4 In whose eyes a vile person is contemned; but he honoureth them that fear the LORD. He that sweareth to his own hurt, and changeth not.
Show me chapter and verse that allows you to use the internet. Or read the Bible translated into English. Or go to church on Sunday rather than Saturday. Or not wear ringlets on your forehead.
I would suggest that you read and pay attention to what Paul had to say about the Judaizers -- those who maintained that Christians had to follow the Jewish commandments in order to obtain salvation. Christ came to give you freedom, not to cause you to be an old poop.
Galatians 5:1 -- For freedom Christ has set us free; stand fast therefore, and do not submit again to a yoke of slavery.