We who are strong ought to bear with the failings of the weak, and not to please ourselves; let each of us please his neighbor for his good, to edify him. For Christ did not please himself; but, as it is written, "The reproaches of those who reproached thee fell on me." For whatever was written in former days was written for our instruction, that by steadfastness and by the encouragement of the scriptures we might have hope. May the God of steadfastness and encouragement grant you to live in such harmony with one another, in accord with Christ Jesus, that together you may with one voice glorify the God and Father of our Lord Jesus Christ. Romans 15:1–6 (RSV)
Human beings are challenging creatures. We are communal by nature, but we also can be quite individual. We need a community in which to live. At the same time, we can find it challenging to live with everyone in our community.
The ideal of a Christian congregation is to embody the very best of both of these very human traits. We are to bear with one another so we, as the Body of Christ, mature and grow. Our Lord does not desire a stagnant congregation. Through the ongoing work of the Holy Spirit, a congregation is guided toward the fullness of Christ.
Some mistake this for 'least common denominator Christianity, that is to say, 'we will do whatever it takes to please folks.' Bearing with the weak among us does not mean giving in to what they want. This does not allow them to mature and grow in the faith.
Living together in Christ is being willing to demonstrate care for one another without diminishing the strength of our witness to Christ. Our Lord did this as He lived among His disciples. He guided them in their weakness but did not allow them to remain in that weakness.