The great commission is not to a few but to all who have been saved, it is also not something you do today and forget for the next few months. You must constantly go after the souls of men.
From the words of the Lord, we know that the harvest is truly plenteous but the labourers are few (Matthew9:37). There are many people today who sit in the region of the shadow of death and are waiting for someone to come to preach the gospel to them. Sadly, even the few people that are sharing the gospel do it without serious commitment and passion.