The gospel is our banner, our identification as ambassadors of Christ. Clearly we are called to proclaim it through all the world. It's a message worthy of our lives, because it demonstrates the glory and wisdom of God through it. Could there possibly be wrong or self righteous reasons for us to proclaim it? Why should we preach the Gospel? Why should we do missions? What should be the motivation behind our actions?
Before I keep going, let me define the word self-righteous: it is to pretend to have a moral superiority in contrast to others; a higher status not justly gained, but acquired by pretense.
With this definition of self-righteousness, here are some of the ways we can be self-righteous about our missionary efforts:
1. Ethnic distinctions: although it is true that a lot of indigenous people who live in remote areas haven't been reached with the Gospel, it is not their ethnicity that makes them a target for evangelism. They are men; that's what makes them a mission field. There is no one ethnicity better than another, for all have been damaged and cursed under the same malady.
This applies as well to people who look at skin color and say that "those" people groups need the Gospel. There is no racial distinction of sinners before the eyes of the Lord; ethnic features are never the problem, but our silly mindsets of inherent racial superiority in who we are, can be an issue.
2. First world - third world mindset: some people do missions based on the fact that there are third world countries--as if the country's status made sin any better. This mindset can make people fall into the danger of making communities in third world countries more like first world ones, instead of simply preaching the Gospel. Let it be said that at the final Day, there won't be those distinctions of first world or third world countries, but simply the reign of our sovereign King. To think that men are a mission field just because they live in a third world country is to not see the implication of the missionary calling at all. It's not their sophistication that is at risk, but their spirituality.
3. Rich - poor mindset: this one can go both ways. Sometimes, rich or more wealthy people think that the poor need the Gospel simply because they are poor and they don't have a lot of the privileges the wealthier people have. Yes, there is a call in the Bible to help the poor; indeed, the Bible says that some in the early church would sell what they owned in order to help each other within the church with their financial needs (Acts 2:45). But again, being poor is not the real problem; a person's sin nature is the issue. It is equally wrong for the poor to think that rich people are in need of the gospel simply because they have more; the rich are men and they need the Gospel as well. No financial status makes a person better than another. Although one can harden your heart more, the need for Jesus is an equal reality for both societal classes.
4. Cultural mindset: although some cultures are more open in their paganism than others, it doesn't mean that those cultures where Christianity has been more influential aren't a mission field. There is one thing you need to know about culture: there are men in them, and they are sinners. So sin can spring from open paganism to a false sense of security in performance(??????????????????????????????????????idk what you're trying to say). Yes, there are men who need the Gospel in countries where they physically bow to idols, but there is also a need for the Gospel in countries where going to church is so common that it can give a false assurance. It's not just about going to church, it's about being the church. History tells us that there is no assurance for us that a society where Christianity has been highly relevant will not turn into a mission field later. Therefore, in all cultures we must preach the Gospel, for in all of them there are men in need of a Savior.
So in conclusion, the reason to evangelize, to do missions, is because men are sinners--men from every part of the world. There are unconverted people in the church, in third world and first world countries, among the rich and the poor, among every culture. Therefore, let's preach Christ to all the nations! There is not one human thing that makes one person better than another in our basic need for the Gospel. We all need it.
Without Christ:
The police man is going to be in the same place as the criminal.
The good father is going to be in the same place as the bad father.
The church attendant will be in the same place as the unchurched.
The soldier is going to be in the same place as the terrorist.
The conservative is going to be in the same place as the liberal.
The obedient son is going to be in the same place as the rebellious son.
Before God, we are all the same, which is why Paul says: “What then? Are we better than they? Not at all; for we have already charged that both Jews and Greeks are all under sin;” Romans 3:9