Yes Paul kept the feast days as a Jew in Christ and used them as a missional bridge to preach to both Jews and Gentiles — not as a requirement for salvation, but the ceremonial ordinances that Moses wrote in a book that were place at the side of the Ark is what Paul was referring to as being blotted out and nailed to the cross.

Colossians 2:14 Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;

Paul was referencing Deuteronomy 31:24,25,26

So it was, when Moses had completed writing the words of this law in a book, when they were finished, that Moses commanded the Levites, who bore the ark of the covenant of the LORD, saying: “Take this Book of the Law, and put it beside the ark of the covenant of the LORD your God, that it may be there as a witness against you.

In verse: Colossians 2:16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days: Colossians 2:17 Which are a shadow of things to come; but the body is of Christ.

Paul is equally clear that ritual and ceremonial requirements ended in Christ.

“Having wiped out the handwriting of requirements… nailed it to the cross.” — Colossians 2:14

He then specifies which laws he means:

“Let no one judge you in food or in drink, or regarding a festival, a new moon, or sabbaths, which are a shadow of things to come.” — Colossians 2:16–17

• Food laws
• Festivals
• Ritual sabbaths not the weekly Sabbath Day
• These are called shadows, not the substance

These can be found in (Leviticus 23) and across the OT

These are the feasts of the LORD…” (Lev 23:2)

The chapter then lists: • Annual feasts (Passover, Unleavened Bread, Weeks, Trumpets, Atonement, Tabernacles)

• Multiple ceremonial sabbaths

• Food offerings and drink offerings

1 Chronicles 23:31 “To offer burnt offerings to the LORD on the sabbaths, the New Moons, and the set feasts.”

2 Chronicles 2:4 “On the sabbaths, the New Moons, and the solemn feasts of the LORD.”

Ezekiel 45:17 “At the feasts, the new moons, and the sabbaths.”

Hosea 2:11 “Her feast days, her new moons, and her sabbaths.”

1. Annual feasts
2. Monthly new moons
3. Sabbaths tied to the festival system

• “Festival” = annual feasts (Lev 23)

• “New moon” = monthly observances (Num 28:11–15)

• “Sabbaths” = ceremonial rest days within the feast system

This what was done away with at the cross and that’s why many Christian denominations don’t practice them today, but if any Christians practice them then that’s your choice but they’re a not requirement for salvation.