Those who do not have love are afraid. They are afraid because they know that other people hate them and are trying to hurt them. They themselves hate other people and know in their heart of hearts that God will punish them for their hatred. This increases their fear even more.
But the Bible says that “perfect love drives out fear.” This kind of love can only come through faith. You must believe that you are loved by God in order to love others. If you do not believe in the God of the Bible you cannot recieve His love or pass His love on to others. The God of the Bible is love (I John 4:16).
“There is no fear in love. But perfect love drives out fear, because fear has to do with punishment. The one who fears is not made perfect in love.” (I John 4:18)