New Revised Standard Version
Therefore, let us celebrate the festival, not with the old yeast, the yeast of malice and evil, but with the unleavened bread of sincerity and truth.

Contemporary English Version
So don't celebrate the festival by being evil and sinful, which is like serving bread made with yeast. Be pure and truthful and celebrate by using bread made without yeast.

New American Bible
Therefore, let us celebrate the feast, not with the old yeast, the yeast of malice and wickedness, but with the unleavened bread of sincerity and truth.

Douay-Rheims Bible
Therefore, let us feast, not with the old leaven, nor with the leaven of malice and wickedness: but with the unleavened bread of sincerity and truth.

Therefore, let us feast, not with the old leaven, nor with the leaven of malice and wickedness: but with the unleavened bread of sincerity and truth.

let.

Exodus 12:15 Seven days shall you eat unleavened bread: in the first day there shall be no leaven in your houses; whosoever shall eat any thing leavened, from the first day until the seventh day, that soul shall perish out of Israel.

Exodus 13:6 Seven days shalt thou eat unleavened bread: and on the seventh day shall be the solemnity of the Lord.

Leviticus 23:6 And the fifteenth day of the same month is the solemnity of the unleavened bread of the Lord. Seven days shall you eat unleavened bread.

Numbers 28:16,17 And in the first month, on the four tenth day of the month, shall be the phase of the Lord, . . .

Deuteronomy 16:16 Three times in a year shall all thy males appear before the Lord thy God in the place which he shall choose: in the feast of unleavened bread, in the feast of weeks, and in the feast of tabernacles. No one shall appear with his hands empty before the Lord:

Isaiah 25:6 And the Lord of hosts shall make unto all people in this mountain, a feast of fat things, a feast of wine, of fat things full of marrow, of wine purified from the lees.

feast.

Psalm 42:4 These things I remembered, and poured out my soul in me: for I shall go over into the place of the wonderful tabernacle, even to the house of God: With the voice of joy and praise; the noise of one feasting.

Isaiah 30:29 You shall have a song as in the night of the sanctified solemnity, and joy of heart, as where one goeth with a pipe, to come into the mountain of the Lord, to the Mighty One of Israel.

not.

1 Corinthians 5:1,6 It is absolutely heard that there is fornication among you and such fornication as the like is not among the heathens: that one should have his father's wife. . . .

1 Corinthians 6:9-11 Know you not that the unjust shall not possess the kingdom of God? Do not err: Neither fornicators nor idolaters nor adulterers: . . .

Deuteronomy 16:3 Thou shalt not eat with it leavened bread: seven days shalt thou eat without leaven, the bread of affliction, because thou camest out of Egypt in fear: that thou mayst remember the day of thy coming out of Egypt, all the days of thy life.

2 Corinthians 12:21 Lest again, when I come, God humble me among you: and I mourn many of them that sinned before and have not done penance for the uncleanness and fornication and lasciviousness that they have committed.

Ephesians 4:17-22 This then I say and testify in the Lord: That henceforward you walk not as also the Gentiles walk in the vanity of their mind: . . .

1 Peter 4:2 That now he may live the rest of his time in the flesh, not after the desires of men but according to the will of God.

neither.

1 Corinthians 3:3 For, whereas there is among you envying and contention, are you not carnal and walk you not according to man?

Matthew 16:6,12 Who said to them: Take heed and beware of the leaven of the Pharisees and Sadducees. . . .

Matthew 26:4,5 And they consulted together that by subtilty they might apprehend Jesus and put him to death. . . .

Mark 8:15 And he charged them saying: Take heed and beware of the leaven of the Pharisees and of the leaven of Herod.

Luke 12:1 And when great multitudes stood about him, so that they trod one upon another, he began to say to his disciples: Beware ye of the leaven of the Pharisees, which is hypocrisy.

John 18:28-30 Then they led Jesus from Caiphas to the governor's hall. And it was morning: and they went not into the hall, that they might not be defiled, but that they might eat the pasch. . . .

2 Corinthians 12:20 For I fear lest perhaps, when I come, I shall not find you such as I would, and that I shall be found by you such as you would not. Lest perhaps contentions, envyings, animosities, dissensions, detractions, whisperings, swellings, seditions, be among you.

1 Peter 2:1,2 Wherefore laying away all malice and all guile and dissimulations and envies and all detractions, . . .

but.

Joshua 24:14 Now therefore fear the Lord, and serve him with a perfect and most sincere heart: and put away the gods which your fathers served in Mesopotamia and in Egypt, and serve the Lord.

Psalm 32:2 Blessed is the man to whom the Lord hath not imputed sin, and in whose spirit there is no guile.

John 1:47 Jesus saw Nathanael coming to him and he saith of him: Behold an Israelite indeed, in whom there is no guile.

2 Corinthians 1:12 For our glory is this: the testimony of our conscience, that in simplicity of heart and sincerity of God, and not in carnal wisdom, but in the grace of God, we have conversed in this world: and more abundantly towards you.

2 Corinthians 8:8 I speak not as commanding: but by the carefulness of others, approving also the good disposition of your charity.

Ephesians 6:24 Grace be with all them that love our Lord Jesus Christ in incorruption. Amen.

1 John 3:18-21 My little children, let us not love in word nor in tongue, but in deed and in truth. . . .