Paul calls the risen Christ 'firstfruits' of those who sleep. The agricultural metaphor strongly resonates with biblical firstfruits, but Paul does not cite Leviticus 23 or state that Jesus rose on the wave-sheaf date.

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.