In reply to Paul K..

Yes…
Saint Paul indeed said “One person esteems one day as better than another, while another esteems all days alike. Each one should be fully convinced in his own mind” but by that I doubt he meant disregarding all days alike as he continued in verse 6 “The one who observes the day, observes it in honor of the Lord. The one who eats, eats in honor of the Lord, since he gives thanks to God, while the one who abstains, abstains in honor of the Lord and gives thanks to God.”

I suggest that if we “esteems all days alike,” and “abstain in honor of the Lord,” then every day is a celebration to the Lord and that time must be spent in prayer and scripture. If that is what you do then that is fantastic, but if not then how are you honoring God “all days alike?” Is Sunday morning alike to Thursday evening to you? According to the church fathers Saint James saw all days alike and his forehead was said to be as calloused as “the knee of a camel” from his daily prayers with his forehead against the ground. Saint Crysostom lived in a cave fasting and pouring over scripture for years because all days were alike. What did you do last night?

If you aren’t honoring God every day alike then perhaps you should consider adding the feasts and celebrating in honor of the Lord. Raise your children in the habit of God being first every day and build traditions of Godliness. As Saint Augustine said repetition becomes routine and that becomes custom. Build a custom of godliness in your family. Feasts are an easy way to do that.

If we compare our culture today with how things were when we celebrated these feast (and listened to Saint Paul on women’s head coverings and the roll of each person in the family) how are we doing today? Would you say we are a more godly society or a less godly society?
Perhaps we need to recognize that Lutheranism was never about changing forward but changing back as we worship unchanging God and read his unchanging Word with an eye on unchanging worship.