In 1967 my wife and I sat in the congregation and heard the minister declare in his sermon that everyone who did not follow the dictates of that denomination was going to hell. This included all Methodists, Presbyterians, Episcopalians, Lutherans, and especially Roman Catholics. His rhetoric was so virulent that he was practically foaming at the mouth by the time he ended his sermon.
But how does such condemnation of others 'measure up' to Scripture? It doesn't. We are told quite clearly what our mindset is to be toward ourselves, toward others, and toward God himself:
So I say, live by the Spirit, and you will not gratify the desires of the sinful nature. For the sinful nature desires what is contrary to the Spirit, and the Spirit what is contrary to the sinful nature. They are in conflict with each other, so that you do not do what you want. But if you are led by the Spirit, you are not under law.
The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.
But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law. Those who belong to Christ Jesus have crucified the sinful nature with its passions and desires. Since we live by the Spirit, let us keep in step with the Spirit. Let us not become conceited, provoking and envying each other. (Galatians 5:16-26,NIV)
I call this passage 'The Christians Code of Conduct'. Not only are our words and actions to conform to what God wants of us, but the underlying motives for those words and actions are to conform to what God wants of us. 'The fruit of the Spirit', the 9 emotions listed in the third paragraph of this passage, are to be seen, and accepted, by us as the borders within which all our words and actions are to originate. Those who would have us go outside those borders and instead follow their lead are to be rejected, irregardless of how pious their words appear.
On a personal note, I have never heard a person who claimed to be a Christian condemn others to hell, without having that same person also tell others that the message of Matthew 25:31-46 (feed the hungry) no longer applied to Christians. It had 'expired'. The mindset that leads to works of compassion, such as caring for the needs of others, and the mindset that culminates in the utter condemnation of others, are so diametrically opposed to each other that a person must choose two entirely different paths. Will he practise the practical application of Jesus' teaching on compassion, alleviating the suffering around him? Or will he preach that the suffering is deserved, and so we are to do nothing to alleviate it? And which path would Jesus Christ himself have us choose?