Joel Wilhelm posts this seasonally relevant passage from Richard Baxter:
As for the commanding such an abstinence, as in Lent, not in imitation, but bare commemoration of Christ’s forty day’s fast, I would not command it if it were in my power; but being peremptorily commanded, I cannot prove it unlawful to obey; with the aforementioned exceptions.
It was anciently held a crime to fast on the Lord’s day, even in Lent; and I take that day to be separated by Christ and the Holy Ghost for a church-festival or day of thanksgiving; therefore I will not keep it as a fast, though I were commanded, unless in such an extraordinary necessity, as aforesaid.
What’s interesting here is that Baxter argues that since Lent is not unlawful, he will obey it. That’s an important reversal from some Puritans who argued that for something to be “lawful” meant that it needed a positive command in its favor.