Remember the sabbath day, to keep it holy.Six days shalt thou labour, and do all thy work: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: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. Exodus 20:8-11 (KJV)
The Bible says love works no ill towards their neighbor;therefore love is the fulfilling of the law,and the 2 greatest commandments is love God,and love people,and Paul said,we do not void out the law,because of faith,but we establish the law,and the law is spiritual,and holy,and just,and good,which is the moral laws,laws of love.
Which the ten commandments are laws of love towards God,and people,so they would be in effect.
Col 2:14 Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;
Col 2:15 And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
Col 2:16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:
Col 2:17 Which are a shadow of things to come; but the body is of Christ.
But Jesus took away the physical ordinances of Israel,nailing them to His cross,because they were contrary to us,which means they have no bearing on us to have a spiritual relationship with God;therefore led no man judge you concerning the sabbath days.
But if the sabbath day is part of the ten commandments,and under the first 4 commandments which are aimed at loving God,and obeying Him,how can we keep the sabbath day,the fourth commandment,if Jesus took them out of the way,and said do not keep them,for they have no bearing on you for salvation.
1Co 15:46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
Isa 28:10 For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:
Isa 28:11 For with stammering lips and another tongue will he speak to this people.
Isa 28:12 To whom he said, This is the rest wherewith ye may cause the weary to rest; and this is the refreshing: yet they would not hear.
It is now a spiritual rest by the Holy Spirit,and that is our sabbath,for the sabbath was meant for rest,and since it is spiritual in the New Testament,then it is a spiritual rest,observing that spiritual sabbath,but God said yet they would not hear.
At least that is what it seems since Jesus said that the physical sabbath does no good in our salvation,and God wants us to observe rest,the sabbath,so it cannot be physical,so it must be spiritual.
Physical rest in the Old Testament,celebrating the making of this earth,and physical ordinances given to Israel.
Spiritual rest in the New Testament,celebrating the making of the new earth,that Jesus said He went away to prepare for the saints,and physical ordinances taken away,and spiritual laws only apply,which love is the fulfilling of the law.