Contradiction with Exodus 34:25
This verse forbids offering blood sacrifices with leavened bread, while Leviticus 23:17 prescribes presenting leavened bread as an offering.
Exodus 34:25: Thou shalt not offer the blood of my sacrifice with leaven; neither shall the sacrifice of the feast of the passover be left unto the morning.
Contradiction with 1 Corinthians 5:7-8
Paul encourages the purging of leaven to celebrate the feast, contrasting with the use of leavened bread in Leviticus 23:17.
1 Corinthians 5:7-8: Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us: [is sacrificed; or, is slain]
Contradiction with Matthew 16:11-12
Jesus warns against the "leaven" of the Pharisees, using it metaphorically for corruption, while Leviticus 23:17 instructs the use of actual leaven in offerings.
Matthew 16:11-12: How is it that ye do not understand that I spake [it] not to you concerning bread, that ye should beware of the leaven of the Pharisees and of the Sadducees?
Contradiction with Exodus 12:15
This verse commands the removal of leaven for seven days during the Feast of Unleavened Bread, opposite to presenting leavened bread in Leviticus 23:17.
Exodus 12:15: Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Contradiction with Galatians 5:9
This verse metaphorically uses leaven to represent negative influence, conflicting with the inclusion of leaven in Leviticus 23:17's offerings.
Galatians 5:9: A little leaven leaveneth the whole lump.