One of the key drivers for division in the Christian church today is an inability to recognise the range of views that conscience allows. For some reason, Christians have a hard time allowing other Christians to take a view on non-essential doctrine that is different to their own.

Classic examples of this are eschatological views (last things), sign gifts of the Spirit ceased or not, whether females can be elders, calvinism vs arminianism, can Christians get tattoos, etc..

These may provide legitimate denominational division, but should they prevent fellowship?

Scripture gives relatively few non-negotiables for salvation in the Christian Faith:

1. Getting the right Jesus (including his full deity and humanity)
2. Getting the right Gospel (including salvation by grace alone through faith alone)
3. The resurrection of Christ

Contained within these are many finer points, such as monotheism and the need to be born again.

You can read an excellent and more full article with Scripture references here: https://carm.org/doctrine-and-theology/essential-doctrines-of-christianity/

Christians need to adjust the tone of their discussion (and “righteous anger” perhaps) so that they speak to those who agree on these main points as brothers and sisters. There is no point in railing against someone who has the Spirit of God in them. You need to trust the Holy Spirit to lead them into greater truth as you discuss the Scriptures and how they apply, calmly and lovingly with them.

And try to learn from them as someone who is part of the body of Christ with gifting from God to contribute to the Church.

Showing the world how we can disagree in love brings glory to God, showing the nature of Christ.

Recognise that:

1. Each person who has been born again, who has the Spirit of God, will be at a particular place in their journey toward greater Christlikeness.
2. Another believer can be genuinely seeking to understand the Word of God and apply it, but still end up at a different interpretation from you.
3. You likely took many years to arrive at your doctrinal positions and how you apply those doctrines to your life.
4. Someone may never move from a certain position in this life due to the time and attention they can give to learning.
5. You can’t manipulate or coerce someone into holding a different view – it is understanding that needs to change.

While we certainly need to be on guard against false teachers, we should be actively warm, loving, and generous toward anyone who has the Spirit of God.

This takes effort to cultivate, but we have a model in Jesus our Saviour, who put in the greatest of effort for us, suffering greatly in order to get to the cross to die for our sins. If we are united to him, and share in his death and resurrection, we are also united to the rest of the body of Christ.

It makes sense to love brothers and sisters in Christ who Christ has accepted.

All that the Father gives me will come to me, and whoever comes to me I will never cast out. – John 6:37 (ESV)