Matthew 16:5-7 AMPC
When the disciples reached the other side of the sea, they found that they had forgotten to bring any bread.
Jesus said to them, Be careful and on your guard against the leaven (ferment) of the Pharisees and Sadducees.
And they reasoned among themselves about it, saying, It is because we did not bring any bread.
AMPC: Amplified Bible, Classic Edition