Some might not be called to be a preacher,or prophet,or evangelist,but all saints are called to witness,and preach the Gospel of Christ,and the kingdom of God,for that is all saints duty as soldiers of Christ,which Jesus said all the saints will be witnesses unto Him,how can people think otherwise,for the Bible says the kingdom of God is within you,and you belong to the kingdom of God,so we have to relate that kingdom to other people,and tell them about Jesus,and His Gospel message,for that is our home,the kingdom of God,and God wants people to be there.