“Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me.” – Isaiah 6:8.
We should be readily available for spreading the word and leading others to Christ in a moment's notice. In some capacity, this may mean leaving a place that you have always known. You could be called to go across the country or perhaps to a whole other country/continent.