1 Corinthians 5:8

So let us feast, not on the old leaven, nor on the leaven of sin and iniquity, but on the unleavened bread of purity and truth.

Matthew 16:6

And Jesus said to them; See and beware of the leaven of the Pharisees and Sadducees.

Matthew 16:12

Then they understood that He did not say to beware of the leaven of the (bread) of the Pharisees and Sadducees, but of the teaching of the Pharisees and Sadducees.

Mark 8:15

And He commanded them, saying, See, beware of the leaven of the Pharisees, and of the leaven of Herod.

Luke 12:1

In the meantime, myriads of the multitude having gathered together, So that they trode on one another, He began to speak to His disciples first; Take heed unto yourselves from the leaven of the Pharisees, which is hypocrisy.

Matthew 26:4-5

And they immediately passed the verdict that they would take Jesus by stratagem, and kill Him.

John 1:47

Jesus saw Nathanael coming to Him, and says concerning him, Behold, an Israelite indeed, in whom there is no guile.

John 18:28-30

Then they lead Jesus from Caiaphas to the judgment hall: and it was morning. And they did not come into the judgment hall, in order that they might not be polluted, but that they might eat the passover.

1 Corinthians 3:3

for ye are yet carnal. For where there are envy and strife among you, are you not carnal, and walking about according to man?

1 Corinthians 5:1

Fornication is truly heard of among you, and such fornication which is not among the heathens, that one should have the wife of his father.

1 Corinthians 5:6

Your boasting is not good. Do you not know that a little leaven leavens the whole lump?

1 Corinthians 6:9-11

Do you not know that the unrighteous shall not inherit the kingdom of God? He not deceived: neither fornicators, nor idolaters, nor adulterers, nor catamites, nor Sodomites,

2 Corinthians 1:12

For our boasting is this, the testimony of our conscience, that in holiness and purity of God, not in carnal wisdom, but in the grace of God, we have sojourned in the world, and especially towards you.

2 Corinthians 8:8

I speak not according to commandment, but through the zeal of others also proving the sincerity of your divine love.

2 Corinthians 12:20-21

For I fear lest, having come, I may not find you as I wish, and may not be found by you as you wish; lest perhaps strife, jealousy, animosities, selfseekings, calumniations, eavesdroppings, inflations, outfallings, are among you;

Ephesians 4:17-22

Therefore I say this, and witness in the Lord, that you no longer walk about as the Gentiles also walk about in the vanity of their mind,

Ephesians 6:24

Grace be with all who love the Lord Jesus Christ with divine love in purity.

1 Peter 2:1-2

Therefore having laid aside all evil, and all guile, and hypocrisies, and envyings, and all calumniations;

1 Peter 4:2

that he may no longer live the remaining time in carnality according to the lusts of men, but in the will of God.

1 John 3:18-21

Little children, let us love with divine love not in word, nor in tongue; but in deed and in truth.

Treasury of Scripture Knowledge

Summary

Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.

General references

Bible References

Not

1 Corinthians 5:1
Fornication is truly heard of among you, and such fornication which is not among the heathens, that one should have the wife of his father.
1 Corinthians 6:9
Do you not know that the unrighteous shall not inherit the kingdom of God? He not deceived: neither fornicators, nor idolaters, nor adulterers, nor catamites, nor Sodomites,
2 Corinthians 12:21
lest, I again having come, my God will humble me before you, and I will mourn over many of those having previously committed sins, and not having repented over the uncleanness and the fornication and debauchery which they have done.
Ephesians 4:17
Therefore I say this, and witness in the Lord, that you no longer walk about as the Gentiles also walk about in the vanity of their mind,
1 Peter 4:2
that he may no longer live the remaining time in carnality according to the lusts of men, but in the will of God.

Neither

1 Corinthians 3:3
for ye are yet carnal. For where there are envy and strife among you, are you not carnal, and walking about according to man?
Matthew 16:6
And Jesus said to them; See and beware of the leaven of the Pharisees and Sadducees.
Matthew 26:4
And they immediately passed the verdict that they would take Jesus by stratagem, and kill Him.
Mark 8:15
And He commanded them, saying, See, beware of the leaven of the Pharisees, and of the leaven of Herod.
Luke 12:1
In the meantime, myriads of the multitude having gathered together, So that they trode on one another, He began to speak to His disciples first; Take heed unto yourselves from the leaven of the Pharisees, which is hypocrisy.
John 18:28
Then they lead Jesus from Caiaphas to the judgment hall: and it was morning. And they did not come into the judgment hall, in order that they might not be polluted, but that they might eat the passover.
2 Corinthians 12:20
For I fear lest, having come, I may not find you as I wish, and may not be found by you as you wish; lest perhaps strife, jealousy, animosities, selfseekings, calumniations, eavesdroppings, inflations, outfallings, are among you;
1 Peter 2:1
Therefore having laid aside all evil, and all guile, and hypocrisies, and envyings, and all calumniations;

But

John 1:47
Jesus saw Nathanael coming to Him, and says concerning him, Behold, an Israelite indeed, in whom there is no guile.
2 Corinthians 1:12
For our boasting is this, the testimony of our conscience, that in holiness and purity of God, not in carnal wisdom, but in the grace of God, we have sojourned in the world, and especially towards you.
2 Corinthians 8:8
I speak not according to commandment, but through the zeal of others also proving the sincerity of your divine love.
Ephesians 6:24
Grace be with all who love the Lord Jesus Christ with divine love in purity.
1 John 3:18
Little children, let us love with divine love not in word, nor in tongue; but in deed and in truth.

General references

Luke 22:1
And the feast of the unleavened bread, called the passover, was nigh.