'Sabbath day' in the Bible

And he came to Nazareth, where he had been brought up: and he entered, as his custom was, into the synagogue on the sabbath day, and stood up to read.

And he came down to Capernaum, a city of Galilee. And he was teaching them on the sabbath day:

But certain of the Pharisees said, Why do ye that which it is not lawful to do on the sabbath day?

And he was teaching in one of the synagogues on the sabbath day.

And he said unto them, Which of you shall have an ass or an ox fallen into a well, and will not straightway draw him up on a sabbath day?