American Standard Version
A little leaven leaveneth the whole lump.

Amplified® Bible
A little leaven (a slight inclination to error, or a few false teachers) leavens the whole lump [it perverts the whole conception of faith or misleads the whole church].

Contemporary English Version
A little yeast can change a whole batch of dough,

Darby English Version
A little leaven leavens the whole lump.

Good News Bible
"It takes only a little yeast to make the whole batch of dough rise," as they say.

International Standard Version
A little yeast spreads through the whole batch of dough.

King James Version
A little leaven leaveneth the whole lump.

New American Standard Bible
A little leaven leavens the whole lump {of dough.}

New International Version
"A little yeast works through the whole batch of dough."

New King James Version
A little leaven leavens the whole lump.

N.A.S.B. in E-Prime
A little leaven leavens the whole lump of dough.

Young's Literal Translation
a little leaven the whole lump doth leaven;

New English Translation
A little yeast makes the whole batch of dough rise!¹