Sabbath

In the Bible, the Sabbath is a weekly religious day of rest as ordained by one of the Ten Commandments: the third commandment by Eastern, Roman Catholic and Lutheran numbering, the fourth by other Protestants.

For Christians, the day of Sabbath is Sunday.

According to the Bible, the Sabbath must be taken very seriously. Breaking the Sabbath is just cause for death according to Numbers 15:32-56

They found a man that gathered sticks upon the sabbath day. ... And the LORD said unto Moses, The man shall be surely put to death: all the congregation shall stone him with stones.... And all the congregation brought him without the camp, and stoned him with stones, and he died; as the LORD commanded Moses.

However, Jesus Christ implied the the Sabbath, and all Biblical edicts, could be broken under extreme situations, according to Matthew 12:1-9

12:1 At that time Jesus went on the sabbath day through the corn; and his disciples were an hungred, and began to pluck the ears of corn and to eat. 12:2 But when the Pharisees saw it, they said unto him, Behold, thy disciples do that which is not lawful to do upon the sabbath day. 12:3 But he said unto them, Have ye not read what David did, when he was an hungred, and they that were with him; 12:4 How he entered into the house of God, and did eat the shewbread, which was not lawful for him to eat, neither for them which were with him, but only for the priests? 12:5 Or have ye not read in the law, how that on the sabbath days the priests in the temple profane the sabbath, and are blameless? 12:6 But I say unto you, That in this place is one greater than the temple. 12:7 But if ye had known what this meaneth, I will have mercy, and not sacrifice, ye would not have condemned the guiltless. 12:8 For the Son of man is Lord even of the sabbath day. 12:9 And when he was departed thence, he went into their synagogue: