From the Pulpit...

This passage adds a second debatable matter to the earlier one about the eating of certain foods. This one has to do with the observance of certain days on the calendar. Those strong and weak in faith view the matter differently, but there is no cause for one to despise the other, or the second to condemn the first. Both must have studied and thought through the matter enough to be fully convinced, and then avoid friendly fire against one another if they end up holding differing views. Most importantly, the passage emphasizes that the Christian must focus his attention on living entirely for Christ in everything he does.