Yes of course they did because what else would they call him lamb of God.
After He is baptized by John, Jesus begins to call His disciples (John 1:35-51).
Why did Jesus call the disciples?Jesus called the disciples because He wanted followers. The disciples (Jesus' followers) set an example for people back in Biblical times. The disciples were very helpful (most of them anyways.)
They immediately followed Him.
12
33 CE
Jesus' disciples
They all faithly remained Jesus disciples after his death.
We called the 12 men as disciples.
He was frying fish which he had caught earlier when the disciples came.
Zero. They had other names for him, such as "Teacher" and Peter called him "The Christ" but they never called him "Jesus".
Jesus took a few disciples to a mountain call Mount of Transfiguration. Where the two prophets of old prophet Elijah and prophet Moses were seen by the disciples.
Mostly the disciples were working at their various trades. Matthew was conducting his tax-collecting business when Jesus called him and James and John were fishing. We are not told in every case what the disciples were doing since the emphasis is on the call itself and on the one giving the call, and the response, not the occupation at the time of the person called.