Matthew 16:5

‘And the disciples came to the other side and forgot to take bread.'

With typical Matthaean abbreviation he sums up the situation in few words. ‘The disciples' came to the other side and found that they had not taken supplies of ‘kosher' bread. Jesus is not mentioned simply because He is not involved in the subsequent early discussions. Mark tells us that in fact the discovery was made en route that they had only one loaf, which would not last them long (Mark 8:14). This clearly caused some consternation among them. They had forgotten Jesus' words about not being anxious about what they should eat (Matthew 6:25), and that He had fed crowds in a far worse situation than this. The idea may well be in fact that ‘the disciples' were trying to hide from Jesus what they were talking about as He sat or lay in the rear of the boat. But if so they could not keep it hidden.