Mark 1:21

Καὶ εἰσπορεύονται εἰς Καπερναούμ· καὶ εὐθεὼς τοῖς σάββασιν εἰσελθὼν εἰς τὴν συναγωγὴν, ἐδίδασκε.

And they went into Capernaum; and immediately on the Sabbath he entered into the synagogue, he taught.

SYNOPTIC GOSPELS

Luke 4:31

Καὶ κατῆλθεν εἰς Καπερναοὺμ πόλιν τῆς Γαλιλαίας· καὶ ἦν διδάσκων αὐτοὺς ἐν τοῖς σάββασι.