"if we do whats right, we have no need to fear."

what this means is that as long as you do what your suppose to do you wont fear anything it'll be alright and everything would turn out as you usally want. An example could be Alex is one day riding his bike down the street and he sees to people beating up a kid, he keeps going because he wants nothing to do with it but he lives in fear for not helping out. As usal you should always do whats right and never wrong because being wrong can mess you up pretty bad. Sometimes being bad could cost you your life.