The things around us is enough evidence for us to believe in God. The bible teaches us that everything was created by God, both the heaven and the earth, this shows we should believe in him because he have much higher power than we humas. When we look around and see how God created us in a perfect way and the nature around us we should know that God is powerful and we must believe in him. The bible tells us that from the things God created he have made himself know to us.
The works of God in the life of people and the testimony they give about how God helped them is another evidence. God have been our only hope to many generations who trust in him. He comforts and help them when they're in danger and he does it to even those who doesn't believe in him. Because of the love he have for us he sent his only son to die for is a big reason for us to believe in him. Many people that believe in him experience a good life because He is always their to help them in the time of danger.