What is the biblical basis for believing that the Feast Days / Appointed Festivals / Holy Convocations are still morally binding for Christians today?

By Feast Days / Appointed Festivals / Holy Convocations I mean: 1. The weekly Sabbath (Lev 23:3) 2. The Passover and the Festival of Unleavened Bread (Lev 23:4-8) 3. Offering the Firstfruits (Lev 23:9-14) 4. The Festival of Weeks (Lev 23:15-22) 5. The Festival of Trumpets (Lev 23:23-25) 6. The Day of Atonement (Lev 23:26-32) 7. The Festival of Tabernacles (Lev 23:33-44) A parallel list is also found in Numbers 28 & 29: 1. Daily Offerings (Num 28:1-8) 2. Sabbath Offerings (Num 28:9-10) 3. Monthly Offerings (a.k.a. New Moons) (Num 28:11-15) 4. The Passover (Num 28:16-25) 5. The Festival of Weeks (Num 28:26-31) 6. The Festival of Trumpets (Num 29:1-6) 7. The Day of Atonement (Num 29:7-11) 8. The Festival of Tabernacles (Num 29:12-40) What is the biblical basis for believing that all (or most) of the holy convocations listed above are still morally binding for Christians today? *Note: the counterpart question is available at [What is the biblical basis for believing that the Feast Days / Appointed Festivals / Holy Convocations are NOT morally binding for Christians today?](https://christianity.stackexchange.com/q/84626/50422)*