And Jesus said to them, The Sabbath was made on account and for the sake of man, not man for the Sabbath; So the Son of Man is Lord even of the Sabbath. Mark 2:27-28(AMPC)
After He finished creating the heavens and the earth and all that is in them God took a sabbath or rest. The Hebrew word from which we get the word sabbath means rest.
After accomplishing the work of our redemption – setting us free from sin and its consequences Jesus sat down or rested at the Father’s right hand in heaven. Hebrews 1:3.
God rests not because He’s tired but because He has finished His work, His work is perfect and to enjoy His work.
In the Old Testament the Sabbath was a day – the seventh day or Saturday and under the law of Moses it was forbidden to do work on that day and failure to keep that law just like it was with the other commandments incurred punishment.
But the law was only a shadow and not the reality itself-see Hebrews 10:1
Those who keep the law of Moses which includes observing the sabbath day have never experienced the real sabbath or rest of God because they are still painfully laboriously under the heavy yoke of the law striving to live right and please God which they can never accomplish because we are only made right with God through faith in Jesus Christ Romans 5:1, and we please God by Faith-see Hebrews 11:6.
Under the New Covenant where we are, the sabbath is not a day to observe but the person Jesus Christ to look to. Jesus is our rest. He personally called out to all of us who labor under heavy loads to come to Him and find rest. Matthew 11:28-30(AMPC) 28 Come to Me, all you who labor and are heavy-laden and overburdened, and I will cause you to rest. [I will [a]ease and relieve and refresh your souls.] 29 Take My yoke upon you and learn of Me, for I am gentle (meek) and humble (lowly) in heart, and you will find rest (relief and ease and refreshment and recreation and blessed quiet) for your souls. 30 For My yoke is wholesome (useful, good—not harsh, hard, sharp, or pressing, but comfortable, gracious, and pleasant), and My burden is light and easy to be borne
In Him, through His crucifixion, death, resurrection, ascension and sitting at the right hand of God in heaven, we have entered the sabbath or rest of God. In Him we have rested from the toiling, pains and hardships of sin, condemnation, fear, worry, sickness, poverty, the curse, death and we have rested into God’s Sabbath of love, life, peace, joy, health, provision, strength, and blessings.