1 Corinthians 5:8

wherefore 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.

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.

Deuteronomy 16:3

Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the bread of affliction; for thou camest forth out of the land of Egypt in haste: that thou mayest remember the day when thou camest forth out of the land of Egypt all the days of thy life.

Matthew 16:6

And Jesus said unto them, Take heed and beware of the leaven of the Pharisees and Sadducees.

Matthew 16:12

Then understood they that he bade them not beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.

Mark 8:15

And he charged them, saying, Take heed, beware of the leaven of the Pharisees and the leaven of Herod.

Luke 12:1

In the mean time, when the many thousands of the multitude were gathered together, insomuch that they trod one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.

Exodus 13:6

Seven days thou shalt eat unleavened bread, and in the seventh day shall be a feast to Jehovah.

Leviticus 23:6

And on the fifteenth day of the same month is the feast of unleavened bread unto Jehovah: seven days ye shall eat unleavened bread.

Numbers 28:16-17

And in the first month, on the fourteenth day of the month, is Jehovah's passover.

Deuteronomy 16:16

Three times in a year shall all thy males appear before Jehovah thy God in the place which he shall choose: in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles; and they shall not appear before Jehovah empty:

Joshua 24:14

Now therefore fear Jehovah, and serve him in sincerity and in truth; and put away the gods which your fathers served beyond the River, and in Egypt; and serve ye Jehovah.

Psalm 32:2

Blessed is the man unto whom Jehovah imputeth not iniquity, And in whose spirit there is no guile.

Psalm 42:4

These things I remember, and pour out my soul within me, How I went with the throng, and led them to the house of God, With the voice of joy and praise, a multitude keeping holyday.

Isaiah 25:6

And in this mountain will Jehovah of hosts make unto all peoples a feast of fat things, a feast of wines on the lees, of fat things full of marrow, of wines on the lees well refined.

Isaiah 30:29

Ye shall have a song as in the night when a holy feast is kept; and gladness of heart, as when one goeth with a pipe to come unto the mountain of Jehovah, to the Rock of Israel.

Matthew 26:4-5

and they took counsel together that they might take Jesus by subtlety, and kill him.

John 1:47

Jesus saw Nathanael coming to him, and saith of him, Behold, an Israelite indeed, in whom is no guile!

John 18:28-30

They lead Jesus therefore from Caiaphas into the Praetorium: and it was early; and they themselves entered not into the Praetorium, that they might not be defiled, but might eat the passover.

1 Corinthians 3:3

for ye are yet carnal: for whereas there is among you jealousy and strife, are ye not carnal, and do ye not walk after the manner of men?

1 Corinthians 5:1

It is actually reported that there is fornication among you, and such fornication as is not even among the Gentiles, that one of you hath his father's wife.

1 Corinthians 5:6

Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?

1 Corinthians 6:9-11

Or know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with men,

2 Corinthians 1:12

For our glorifying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God, we behaved ourselves in the world, and more abundantly to you-ward.

2 Corinthians 8:8

I speak not by way of commandment, but as proving through the earnestness of others the sincerity also of your love.

2 Corinthians 12:20-21

For I fear, lest by any means, when I come, I should find you not such as I would, and should myself be found of you such as ye would not; lest by any means there should be'strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults;

Ephesians 4:17-22

This I say therefore, and testify in the Lord, that ye no longer walk as the Gentiles also walk, in the vanity of their mind,

Ephesians 6:24

Grace be with all them that love our Lord Jesus Christ with a love incorruptible.

1 Peter 2:1-2

Putting away therefore all wickedness, and all guile, and hypocrisies, and envies, and all evil speakings,

1 Peter 4:2

that ye no longer should live the rest of your time in flesh to the lusts of men, but to the will of God.

1 John 3:18-21

My Little children, let us not love in word, neither with the tongue; but in deed and truth.

Treasury of Scripture Knowledge

Bible References

Let

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.
Exodus 13:6
Seven days thou shalt eat unleavened bread, and in the seventh day shall be a feast to Jehovah.
Leviticus 23:6
And on the fifteenth day of the same month is the feast of unleavened bread unto Jehovah: seven days ye shall eat unleavened bread.
Numbers 28:16
And in the first month, on the fourteenth day of the month, is Jehovah's passover.
Deuteronomy 16:16
Three times in a year shall all thy males appear before Jehovah thy God in the place which he shall choose: in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles; and they shall not appear before Jehovah empty:
Isaiah 25:6
And in this mountain will Jehovah of hosts make unto all peoples a feast of fat things, a feast of wines on the lees, of fat things full of marrow, of wines on the lees well refined.

Feast

Psalm 42:4
These things I remember, and pour out my soul within me, How I went with the throng, and led them to the house of God, With the voice of joy and praise, a multitude keeping holyday.
Isaiah 30:29
Ye shall have a song as in the night when a holy feast is kept; and gladness of heart, as when one goeth with a pipe to come unto the mountain of Jehovah, to the Rock of Israel.

Not

1 Corinthians 5:1
It is actually reported that there is fornication among you, and such fornication as is not even among the Gentiles, that one of you hath his father's wife.
1 Corinthians 6:9
Or know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with men,
Deuteronomy 16:3
Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the bread of affliction; for thou camest forth out of the land of Egypt in haste: that thou mayest remember the day when thou camest forth out of the land of Egypt all the days of thy life.
2 Corinthians 12:21
lest again when I come my God should humble me before you, and I should mourn for many of them that have sinned heretofore, and repented not of the uncleanness and fornication and lasciviousness which they committed.
Ephesians 4:17
This I say therefore, and testify in the Lord, that ye no longer walk as the Gentiles also walk, in the vanity of their mind,
1 Peter 4:2
that ye no longer should live the rest of your time in flesh to the lusts of men, but to the will of God.

Neither

1 Corinthians 3:3
for ye are yet carnal: for whereas there is among you jealousy and strife, are ye not carnal, and do ye not walk after the manner of men?
Matthew 16:6
And Jesus said unto them, Take heed and beware of the leaven of the Pharisees and Sadducees.
Matthew 26:4
and they took counsel together that they might take Jesus by subtlety, and kill him.
Mark 8:15
And he charged them, saying, Take heed, beware of the leaven of the Pharisees and the leaven of Herod.
Luke 12:1
In the mean time, when the many thousands of the multitude were gathered together, insomuch that they trod one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.
John 18:28
They lead Jesus therefore from Caiaphas into the Praetorium: and it was early; and they themselves entered not into the Praetorium, that they might not be defiled, but might eat the passover.
2 Corinthians 12:20
For I fear, lest by any means, when I come, I should find you not such as I would, and should myself be found of you such as ye would not; lest by any means there should be'strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults;
1 Peter 2:1
Putting away therefore all wickedness, and all guile, and hypocrisies, and envies, and all evil speakings,

But

Joshua 24:14
Now therefore fear Jehovah, and serve him in sincerity and in truth; and put away the gods which your fathers served beyond the River, and in Egypt; and serve ye Jehovah.
Psalm 32:2
Blessed is the man unto whom Jehovah imputeth not iniquity, And in whose spirit there is no guile.
John 1:47
Jesus saw Nathanael coming to him, and saith of him, Behold, an Israelite indeed, in whom is no guile!
2 Corinthians 1:12
For our glorifying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God, we behaved ourselves in the world, and more abundantly to you-ward.
2 Corinthians 8:8
I speak not by way of commandment, but as proving through the earnestness of others the sincerity also of your love.
Ephesians 6:24
Grace be with all them that love our Lord Jesus Christ with a love incorruptible.
1 John 3:18
My Little children, let us not love in word, neither with the tongue; but in deed and truth.

General references

Leviticus 23:5
In the first month, on the fourteenth day of the month at even, is Jehovah's passover.
Numbers 28:16
And in the first month, on the fourteenth day of the month, is Jehovah's passover.
Luke 22:1
Now the feast of unleavened bread drew nigh, which is called the Passover.

American Standard Version Public Domain