God gave the people of Israel the Sabbath. (Ex 16:23)

Ex 16:23 And he said unto them, This is that which the Lord hath said, To morrow is the rest of the holy sabbath unto the Lord: bake that which ye will bake to day, and seethe that ye will seethe; and that which remaineth over lay up for you to be kept until the morning.

Jesus is our true Sabbath and Lord of the Sabbath. (Matthew 12:8, Mark 2:28, Luke 6:5, Matt 11:28)

Matthew 12:8 For the Son of man is Lord even of the sabbath day.

Mark 2:28 Therefore the Son of man is Lord also of the sabbath.

Luke 6:5 And he said unto them, That the Son of man is Lord also of the sabbath.

Matt 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.

Jesus taught on the Sabbath that He was the Christ prophesied to come in the Old Testament. (Mark 1:21, Mark 6:2, Luke 4:31, Luke 13:10)

Mark 1:21 And they went into Capernaum; and straightway on the sabbath day he entered into the synagogue, and taught.

Mark 6:2 And when the sabbath day was come, he began to teach in the synagogue: and many hearing him were astonished, saying, From whence hath this man these things? and what wisdom is this which is given unto him, that even such mighty works are wrought by his hands?

Luke 4:31 And came down to Capernaum, a city of Galilee, and taught them on the sabbath days.

Luke 13:10 And he was teaching in one of the synagogues on the sabbath.

Jesus revealed that the Old Testament describes Christ and that Christ is Himself. The Bible is correctly understood when it is believed that Jesus is the Christ. (Luke 24:44-45, John 2:22)

Luke 24:44 And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me. 45 Then opened he their understanding, that they might understand the scriptures,

John 2:22 When therefore he was risen from the dead, his disciples remembered that he had said this unto them; and they believed the scripture, and the word which Jesus had said.