Paul is reminding us that we are to love our neighbors as ourselves. Doing good to all people includes those that we may not like and those who may not like us. Jesus told us to love our enemies and to pray for those who persecute you. Yes, as believers you need to look after your fellow believes, but you also need to care for those who are far from God. This is how Jesus lived. He deeply cared for and loved his disciples, but he also deeply cared for and loved those who weren’t his disciples. Remember that we have been called to love people and that you show your love for people by doing good for them.