Leviticus 6:17 repeats the prohibition of leaven in the grain offering, reinforcing its status as most holy like the sin offering.

In 1 Corinthians 5:6-8, Paul applies the leaven prohibition to church discipline, using leaven as sin that must be removed for holiness.

Exodus 23:18 reinforces the same prohibition: leaven must not accompany blood sacrifices, echoing the ban on leaven in grain offerings.

In Matthew 16:6, Jesus uses 'leaven' metaphorically for corrupt teaching, drawing on the OT symbolism of leaven as impurity.

Exodus 12:19 bans leaven from homes during Passover, reflecting the same symbolic exclusion of leaven as impurity seen in grain offerings.

Exodus 12:20 continues the command to eat only unleavened bread, reinforcing the broader leaven prohibition that also applies to grain offerings.

Matthew 16:11 repeats the warning about the leaven of the Pharisees, again using the OT image of leaven as a corrupting agent.

In Matthew 16:12, leaven symbolizes false teaching, echoing the OT prohibition of leaven in offerings as a symbol of corruption.

In Mark 8:15, leaven represents the corrupting influence of the Pharisees and Herod, paralleling the OT ban on leaven in offerings.

In Luke 12:1, leaven is hypocrisy, a metaphor for hidden corruption, similar to the OT prohibition of leaven in offerings.

In Galatians 5:9, Paul uses the leaven metaphor to warn that false teaching spreads, echoing the OT symbol of leaven as corruption.