'Sabbath Day' in the Bible

At that time Jesus went through the fields on the Sabbath day; and his disciples, being in need of food, were taking the heads of grain.

And there was a man with a dead hand. And they put a question to him, saying, Is it right to make a man well on the Sabbath day? so that they might have something against him.

And he said to them, Which of you, having a sheep, if it gets into a hole on the Sabbath day, will not put out a helping hand and get it back?

Of how much more value is a man than a sheep! For this reason it is right to do good on the Sabbath day.