As an example, the Apostle takes opinions about eating various kinds of food. In this the Roman Christians were probably especially divided among themselves. Those who had come from the Jews could keep the distinction between clean and unclean food, and between what was permitted or not permitted on certain days. Christians from the Gentiles could not keep these distinctions.
Seeing this as a matter in which differing opinions are possible, he first counsels tolerance toward others on this question. He finds that both those who eat and those who do not eat have equally been received by God. Some can eat only vegetables, and others also meat, according to the condition of their health. Therefore there is no ground for mutual condemnations.
Even if there were some ground for condemnation, still a Christian, not being authorized by God for this judgment, must not condemn. The chief point is that this was a matter in which the greatest freedom had then to be allowed. Therefore the Apostle concludes by advising each person to act in this matter according to the considerations of his own mind.
According to Saint John Chrysostom, "many of the Jews who had believed still had a conscience bound by the Law after accepting the faith. They observed strict discrimination in food, because they did not dare to depart from the Law.
"Moreover, lest by abstaining only from pork they fall under accusation, they began to abstain from all meat and to eat only vegetables. They did this under the appearance of observing a fast, not Jewish discrimination in food according to the Law.
"On the other hand, there were others more perfect in faith. They themselves observed no such discrimination in food, and they burdened and grieved those who did observe it by their reproaches and rebukes. They even cast them into despondency."
Concerning the words of verse 5 he later observes: "Here, as I think, the Apostle lightly hints also at fasting. Probably some of those who fasted continually condemned those who did not fast, and the reverse. Or perhaps among those who discriminated in food there were some who observed discrimination on certain days and not on others."
"But the force of the apostolic speech is not in this," writes Bishop Theophan. "It lies in the principle expressed here concerning indifferent matters and things: let each act according to his conscience.
"What has been determined by commandment and established by dogma, hold to and fulfill without delay. It is not so with indifferent matters and things. Here let your conviction and your conscience determine how to act and how to think.
"Only in everything have in view the glory of God, and not self-pleasing, neither pleasing your mind nor your heart."
This is why the Apostle says further: "He who regards the day, regards it to the Lord. He who eats, eats to the Lord." By this he teaches, on the one hand, that all things must be done to the glory of God. On the other hand, he teaches not to condemn because of difference in indifferent matters. This is all the more so because it is unknown with what thoughts and feelings some fast and others do not fast.
It is worth noting that the words of verse 3, "for God has received him," seem more closely to refer to the Christian received by God from the Gentiles. Yet they may also be referred to the Christian from the Jews.