Genesis 2:2–3 King James Version
2 And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made. 3 And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which God created and made.
Exodus 20:8–11 King James Version
8 Remember the sabbath day, to keep it holy. 9 Six days shalt thou labour, and do all thy work: 10 But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: 11 For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
Matthew 12:1–14 King James Version
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. 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. 3 But he said unto them, Have ye not read what David did, when he was an hungred, and they that were with him; 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? 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? 6 But I say unto you, That in this place is one greater than the temple. 7 But if ye had known what this meaneth, I will have mercy, and not sacrifice, ye would not have condemned the guiltless. 8 For the Son of man is Lord even of the sabbath day. 9 And when he was departed thence, he went into their synagogue: 10 And, behold, there was a man which had his hand withered. And they asked him, saying, Is it lawful to heal on the sabbath days? that they might accuse him. 11 And he said unto them, What man shall there be among you, that shall have one sheep, and if it fall into a pit on the sabbath day, will he not lay hold on it, and lift it out? 12 How much then is a man better than a sheep? Wherefore it is lawful to do well on the sabbath days. 13 Then saith he to the man, Stretch forth thine hand. And he stretched it forth; and it was restored whole, like as the other. 14 Then the Pharisees went out, and held a council against him, how they might destroy him.
Romans 14:4–6 King James Version
4 Who art thou that judgest another man’s servant? to his own master he standeth or falleth. Yea, he shall be holden up: for God is able to make him stand. 5 One man esteemeth one day above another: another esteemeth every day alike. Let every man be fully persuaded in his own mind. 6 He that regardeth the day, regardeth it unto the Lord; and he that regardeth not the day, to the Lord he doth not regard it. He that eateth, eateth to the Lord, for he giveth God thanks; and he that eateth not, to the Lord he eateth not, and giveth God thanks.