How to Use "leaven" with Example Sentences

1. Beware of the leaven of the pharisees which is hypocrisy .
2. For seven days you shall eat bread without leaven .
3. Whether you like it or not , your life is a leaven .
4. A little leaven leavens the whole lump .
5. Take nothing which has leaven in it ; wherever you are living let your food be unleavened cakes .