I can only give my own personal reason for my faith in all honesty. I know there are Christians out there who use God as an excuse to do pretty bad things, but I do not consider myself among them.
For me believing in God helps me feel like we have a purpose in this world, that we were not put here by random chance. It helps me feel like we are part of something greater than us, and that all this hate that so-called religious people spread really doesn't matter.
To me God is a force of good that lives in all of us, and we have our choice whether we want to be guided by God or not. It's not about reading the bible, going to church and focusing on how people love each other being wrong.
It's about being good, plain and simple. And that's what believing in God is to me. Believing that there is something good in all of us, regardless of who we are, regardless of our colour, gender, sexual preference and so on.
I never really try to force my faith on others, I want people to choose for themselves how they want to see the world. Because you cannot make someone believe in God, it has to come from within yourself. It's not something you're told, it's something you feel, something you just know.
That's why it's a bit difficult for me to properly express why I believe in God. I just kinda do because I feel it so strongly.
I've been told that I'm not a true Christian, but personally I don't really care how other people define Christianity. This is how I choose to define it because it makes my world a better place.