Matthew 9;37 ''Then he said to his disciples, “The harvest is plentiful but the workers are few.''
Yes, you can separate the men from the boys when you see 'watchers' versus 'helpers.' The observers are usually the first to tell you what you did wrong or what you should have done. I like people with initiative and that don't have to be asked or told to pitch in and help.
Some people think the 'pastors' of the world are the ones called to spread the Gospel to others. We are 'all' called to be missionaries to the world in which we live. 'Go tell it on the mountain, over the hills and everywhere.' You don't have to have the gift of teaching or be full of Biblical facts to share how God has changed your life personally. Spark a light and let God engulf the blaze in someone's heart.