His parents said this because they were afraid of the Jews, for the Jews had already made an agreement that if anyone acknowledged Jesus as the Christ, he should be excluded from the synagogues.

Yet for all that, even among the leading men, many came to believe in him, but on account of the Pharisees they would not acknowledge it, for fear of being excluded from the synagogues,

They will exclude you from their synagogues; why, the time is coming when anyone who kills you will think he is doing religious service to God.

Jesus answered, "I have spoken openly to the world. I have always taught in synagogues or in the Temple where all the Jews meet together, and I have said nothing in secret.

Jesus said all this while he was teaching in the synagogue at Capernaum.

They answered, "You were born in utter sin, and are you trying to teach us?" So they excluded him from the synagogue.