Matthew 10:28 (king James Version)

And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell. (Matthew 10:28) We need not be in dread of Satan or his human agents. True, some may have the power to cause harm, even death. However, the worst they can do is still only temporary. Jesus can and will undo any damage done to his faithful servants, even resurrecting them. It is Jesus alone who is worthy of our fear, our profound awe and respect. He alone has the power to take away life and all prospects for future life.Because of the resurrection hope, we as God’s servants can always be sure that we are safe.
Having fear to God it means that we had a strong faith to him.Obviously, it is far more important to obey God then man. Obeying God when it's unpopular has less serious consequences then not obeying God, but following the popular crowd.