What, if anything, should Christians tolerate?
Before we answer the question, let’s define our term. Modern moral relativists seek to redefine tolerance as “recognizing that your view is equally valid as mine.” The traditional usage of tolerance is closer to: “You’re entirely entitled to hold your view, even if I think you’re completely wrong.” For this post, we’re using the traditional usage.
There are things which Christians are to tolerate. I Corinthians 8 establishes respect and tolerance for fellow-believers in matters of conscience, like eating meat sacrificed to idols. Acts 15 shows us to tolerate cultural differences, at least insofar they are not matters proscribed by the Bible. We are also to tolerate (and even love!) fellow believers who differ with us doctrinally—on doctrines (like eschatology) that may be important but are not crucial to faith in Christ and the core teachings of the Christian faith. Naturally, a list of this nature cannot be comprehensive.
But Christians must not tolerate that which would send someone to Hell.
Any sin—even one “small” sin—is more than enough to separate an unredeemed sinner from God for eternity. If someone has not believed in Christ for salvation, they will be in Hell for eternity. Though we may hate the sin, we are to love the sinner. Yes, it may be tolerance to maintain that they are entirely entitled to hold their view. But it is not love.
It’s not our job to change hearts. It’s our job to present the truth in love and let God do the heart surgery.