Paul explicitly calls Christ “our passover” sacrificed for us and immediately uses unleavened-bread imagery to exhort the Corinthian church toward sincerity and truth. Leviticus 23 supplies the Passover-and-Unleavened-Bread festival framework, while Exodus 12 remains the foundational narrative. The New Testament connection is therefore explicit even though the Leviticus passage is part of a wider Torah complex.

Leviticus places Passover and Unleavened Bread into Israel’s annual sacred calendar, directly carrying forward the feast established in Exodus 12. The later law does not invent a new festival; it orders the already-given Exodus memorial within the broader cycle of appointed times.

Foreshadowing / mirroring — strong canonical trajectory: Colossians 2:16–17 names festival, new-moon, and Sabbath observances as “a shadow of things to come” and says the substance/body belongs to Christ. Leviticus 23 is a central Torah calendar of appointed times, so Paul gives explicit Christ-directed shadow language at the system level even though he does not quote Leviticus 23 by name.