The parable of the leaven is often misunderstood, but it teaches that the church is not responsible for changing the world through the gospel. Instead, the gospel will be preached around the world, but the church will remain a minority, and the world will continue to be full of wickedness and rebellion. The leaven represents evil, and it can take the form of legalism, liberalism, or license, which can infiltrate the church and corrupt it.
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