Some CH commentary:
The doctrine of Romans 14
1. The fellowship of the saints is not to be broken for unessential matters; in other words, we have no right to make any thing which is compatible with piety a bar to Christian communion. Paul evidently argues on the principle that if a man is a true Christian, he should be recognized and treated as such. If God has received him, we should receive him, vers. 1-12.
2. The true criterion of a Christian character is found in the governing purpose of the life. He that lives unto the Lord, i.e. he who makes the will of Christ the rule of his conduct, and the glory of Christ his constant object, is a true Christian, although from weakness or ignorance he may sometimes mistake the rule of duty, and consider certain things obligatory which Christ has never commanded, vers. 6-8.
