Leviticus 23:26-32
Again the LORD said to Moses, / “The tenth day of this seventh month is the Day of Atonement. You shall hold a sacred assembly and humble yourselves, and present a food offering to the LORD. / On this day you are not to do any work, for it is the Day of Atonement, when atonement is made for you before the LORD your God. ...

Leviticus 16:29-34
This is to be a permanent statute for you: On the tenth day of the seventh month, you shall humble yourselves and not do any work—whether the native or the foreigner who resides among you— / because on this day atonement will be made for you to cleanse you, and you will be clean from all your sins before the LORD. / It is a Sabbath of complete rest for you, that you may humble yourselves; it is a permanent statute. ...

Hebrews 9:7
But only the high priest entered the second room, and then only once a year, and never without blood, which he offered for himself and for the sins the people had committed in ignorance.

Hebrews 10:1-4
For the law is only a shadow of the good things to come, not the realities themselves. It can never, by the same sacrifices offered year after year, make perfect those who draw near to worship. / If it could, would not the offerings have ceased? For the worshipers would have been cleansed once for all, and would no longer have felt the guilt of their sins. / Instead, those sacrifices are an annual reminder of sins, ...

Leviticus 4:27-31
And if one of the common people sins unintentionally and does what is prohibited by any of the LORD’s commandments, he incurs guilt. / When he becomes aware of the sin he has committed, he must bring an unblemished female goat as his offering for that sin. / He is to lay his hand on the head of the sin offering and slaughter it at the place of the burnt offering. ...

Leviticus 5:5-10
If someone incurs guilt in one of these ways, he must confess the sin he has committed, / and he must bring his guilt offering to the LORD for the sin he has committed: a female lamb or goat from the flock as a sin offering. And the priest will make atonement for him concerning his sin. / If, however, he cannot afford a lamb, he may bring to the LORD as restitution for his sin two turtledoves or two young pigeons—one as a sin offering and the other as a burnt offering. ...

Hebrews 9:22
According to the law, in fact, nearly everything must be purified with blood, and without the shedding of blood there is no forgiveness.

Hebrews 10:11-14
Day after day every priest stands to minister and to offer again and again the same sacrifices, which can never take away sins. / But when this Priest had offered for all time one sacrifice for sins, He sat down at the right hand of God. / Since that time, He waits for His enemies to be made a footstool for His feet, ...

Leviticus 23:23-25
The LORD also said to Moses, / “Speak to the Israelites and say, ‘On the first day of the seventh month you are to have a day of rest, a sacred assembly announced by trumpet blasts. / You must not do any regular work, but you are to present a food offering to the LORD.’”

Leviticus 23:33-36
And the LORD said to Moses, / “Speak to the Israelites and say, ‘On the fifteenth day of the seventh month the Feast of Tabernacles to the LORD begins, and it continues for seven days. / On the first day there shall be a sacred assembly. You must not do any regular work. ...

2 Chronicles 30:22-27
And Hezekiah encouraged all the Levites who performed skillfully before the LORD. For seven days they ate their assigned portion, sacrificing peace offerings and giving thanks to the LORD, the God of their fathers. / The whole assembly agreed to observe seven more days, so they observed seven days with joy. / For Hezekiah king of Judah contributed a thousand bulls and seven thousand sheep for the assembly, and the officials contributed a thousand bulls and ten thousand sheep for the assembly, and a great number of priests consecrated themselves. ...

Nehemiah 8:13-18
On the second day of the month, the heads of all the families, along with the priests and Levites, gathered around Ezra the scribe to study the words of the Law. / And they found written in the Law, which the LORD had commanded through Moses, that the Israelites were to dwell in booths during the feast of the seventh month, / and that they should proclaim this message and spread it throughout their towns and in Jerusalem, saying, “Go out to the hill country and bring back branches of olive, wild olive, myrtle, palm, and other leafy trees, to make booths, as it is written.” ...

Ezekiel 45:25
During the seven days of the feast that begins on the fifteenth day of the seventh month, he is to make the same provision for sin offerings, burnt offerings, grain offerings, and oil.’

Romans 5:11
Not only that, but we also rejoice in God through our Lord Jesus Christ, through whom we have now received reconciliation.

Romans 8:3-4
For what the law was powerless to do in that it was weakened by the flesh, God did by sending His own Son in the likeness of sinful man, as an offering for sin. He thus condemned sin in the flesh, / so that the righteous standard of the law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit.