'Secret' in the Bible

For there is no man that doeth any thing in secret, and he himself seeketh to be known openly. If thou do these things, shew thyself to the world.

But when his brethren were gone up, then went he also up unto the feast, not openly, but as it were in secret.

Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing.

Later on, Joseph of Arimathea, who was a disciple of Jesus (though a secret one because he was afraid of the Jewish leaders), asked Pilate to let him remove the body of Jesus. Pilate gave him permission, and he came and removed his body.