We who are strong ought to bear with the failings of the weak and not to please ourselves. Each of us should please our neighbors for their good, to build them up. For even Christ did not please himself but, as it is written: “The insults of those who insult you have fallen on me.” For everything that was written in the past was written to teach us, so that through the endurance taught in the Scriptures and the encouragement they provide we might have hope.
May the God who gives endurance and encouragement give you the same attitude of mind toward each other that Christ Jesus had, so that with one mind and one voice you may glorify the God and Father of our Lord Jesus Christ.
Accept one another, then, just as Christ accepted you, in order to bring praise to God. For I tell you that Christ has become a servant of the Jews on behalf of God’s truth, so that the promises made to the patriarchs might be confirmed and, moreover, that the Gentiles might glorify God for his mercy. As it is written:
“Therefore I will praise you among the Gentiles;
I will sing the praises of your name.”
Again, it says,
“Rejoice, you Gentiles, with his people.”
“Praise the Lord, all you Gentiles;
let all the peoples extol him.”
And again, Isaiah says,
“The Root of Jesse will spring up,
one who will arise to rule over the nations;
in him the Gentiles will hope.”
May the God of hope fill you with all joy and peace as you trust in him, so that you may overflow with hope by the power of the Holy Spirit.
The problem was a Jewish-Gentile one, and specifically over the major change that had come, namely that one did not become a part of God’s people through conversion in becoming a “righteous proselyte.” Circumcision for males required for that. Now all were members of God’s people through faith in Christ, baptism being the circumcision for all as one in Christ.
Fast forward to today and you no longer find as much of this problem, but you still find all kinds of issues which threaten to undermine and displace our oneness in Christ. One huge example is political differences. Here in the United States one’s partisan loyalty has become like the major marker in evaluating and feeling at home with someone. The problem probably isn’t so much the differences in opinion, but the way such differences are held. And it may be true that this is more so on one side than another, especially if that side is the majority, or in the place of influence and power. But the attitude usually cuts across both ways, so that it’s no easier for one side than the other.
Back to the time this was written: Paul at length here (click above link) tells both Gentile along with what we might call enlightened believers, and Jewish believers not to look down on each other. Those “strong” in their faith could break the old kosher rules. But those “weak” in their faith could not. Paul warned those who were strong neither to look down on their brothers and sisters who wouldn’t join them, nor to cause them to stumble by boldly doing what they themselves in good conscience could not do. At the same time Paul was working on helping those “weak” in their faith to accept the strong. Perhaps their weakness of faith was not so much if at all in their own practice of circumcision and abiding by the food laws, etc. But actually in not accepting those who had faith in Christ, but didn’t join them in their practice. They may have had good reason to continue in their Jewishness, as long as they didn’t consider that necessary for others. Some certainly could not do what they themselves with their weak conscience would not permit themselves to do.
Back to today, I believe we have to be careful not to look down on each other, even to the point sadly sometimes of actually despising each other. Instead we’re to accept each other, just as Christ accepted us in order to bring glory and praise to God. That means we accept our differences. We don’t try to change the other to our “enlightened” point of view. We make necessary distinctions between what is absolutely essential and the many things which are not. And we try to understand the differences, something we won’t arrive at overnight, and in some ways in this life, never. But we seek to be open to better understanding not only of our differences, but also to help us see better ourselves to a necessary Christ-like change. In and through Jesus.