Matthew 16:6-8 New Century Version (NCV)
6 Jesus said to them, “Be careful! Beware of the yeast of the Pharisees and the Sadducees.”
7 His followers discussed the meaning of this, saying, “He said this because we forgot to bring bread.”
8 Knowing what they were talking about, Jesus asked them, “Why are you talking about not having bread? Your faith is small.