Indeed, religion always teaches about goodness. But human nature is different. There are people who have good personalities, there are also people who have bad personalities.
In essence, in this world can not be separated from the name of the nature of envy, jealousy, as well as other bad traits. Therefore, religion teaches us to always obey in a good way, and not easily get carried away by emotions.
There are some people who are obedient to their religion, some are not.
Not all religions teach love and peace. Even those religions that in their inception called for peaceful coexistence between people, it turned out later that this was to win popular sympathy and to attract more followers. Then the laws of those religions are transformed into laws of life that impose the domination of one class or group of society over another.
Almost this happened with the most prevalent religions today on the surface of the earth, including Islam and Christianity, which was an element that helped to expand the empire in their time.
But what does the Christian religion really show... that most other religions don't. It shows the personal - between you and God - everlasting life Jesus offers... and why and how it works.
Of course, the whole Bible revolves around doing and being good and righteous. The examples in the Old Testament of the Bible show what happens to people who are not good and right as they live before God, and people who are.
One big focus sould be this. In Matthew in the New Testament, Jesus says, "Ask and it will be given to you; seek and you will find; knock and the door will be opened to you. For everyone who asks receives; he who seeks finds; and to him who knocks, the door will be opened." When it doesn't work for people who ask, they say that it was simply not God's will. But if it wasn't God's will, then how could Jesus say it in the first place?
The focus is faith in God. Time to focus on what faith in God really is. In a different area of the NT, Jesus shows what faith can be, "Because you have so little faith. I tell you the truth, if you have faith as small as a mustard seed, you can say to this mountain, ‘Move from here to there’ and it will move. Nothing will be impossible for you."