The division of sheep and goats is based on those who have taken the teachings to heart and acted on the lessons. We have to take the lessons of Jesus, ingest them and let them change us. Is there evidence of his life in us?
Letting fear take over stops us from living. Live is growth, functional activity and change preceding death (Oxford Dictionaries). We don’t live when fear has caused us to stop following God’s will or intention for us.
It comes to me that perhaps it is the last reason, lack of language, that people would turn down the invitation of the king of the parable. People do not speak His language, they do not understand, do not want to understand and simply do not care to understand this culture that we call Christianity.
Our mission may seem to change over time, but I think the primary mission we all have is to spread the gospel and make disciples. It is the ‘who’ we disciple and the ‘how’ that likely changes over time, at work, school, church, when volunteering, in family.