All the apostles (12 disciples) came together after having been sent out by Jesus to preach the coming of the kingdom.
They told Jesus all the things that they had seen and done. They told him how the sick were healed and the demons cast out. They shared what they taught and preached regarding the kingdom.
When John the Baptist’s disciples told Jesus about the death of John, Jesus gathered His disciples and withdrew to the other side of the Sea of Galilee to Bethsaida.