Ezekiel 45:17 informs us that the ordinances had “meat and drink offerings, feasts, new moons, and sabbath days” which were because of sin. 

Colossians 2:16 also says that the ordinances had “meat and drink offerings, feasts, new moons, and sabbath days” which Paul says very plainly in Colossians 2:14 that these ordinances were against us, and contrary to us, and nailed to the cross and hence were also because of sin. 

Those that try and convince others that we still need to keep these feasts often say that the sacrificial part of the law did not include the Holy Feast days such as Passover etc. 

But did these ordinances which Ezekiel 45 states were for a sin offering include the feasts? 

Absolutely. 

Observe verse 21 for instance. “Passover” and the “Feast of Unleavened bread” are clearly included.

Ezekiel 45:17-21, 17 And it shall be the prince's part to give burnt offerings, and meat offerings, and drink offerings, in the feasts [holy day], and in the new moons, and in the sabbaths, in all solemnities of the house of Israel: he shall prepare the sin offering, and the meat offering, and the burnt offering, and the peace offerings, to make reconciliation for the house of Israel. 18 Thus saith the Lord GOD; In the first month, in the first day of the month, you shall take a young bullock without blemish, and cleanse the sanctuary: 19 And the priest shall take of the blood of the sin offering, and put it upon the posts of the house, and upon the four corners of the settle of the altar, and upon the posts of the gate of the inner court. … 21 In the first month, in the fourteenth day of the month, you shall have the Passover, a feast of seven days; unleavened bread shall be eaten.”