Defining laws does not make them without effect.
The word rest is not a time sensitive word at all, not even a moment of the twinkling of the eye. It can be applied to any time period to include the new era of Sabbaths to represent the new creation as one of the many Sabbaths. Any time a person hears the voice of God that works in us to both will and do His good pleasure as a imputed righteousness we have entered His rest. We are not to judge one another in retrospect to ceremonial law, They are laws that were as shadows used to preach the suffering of Christ beforehand and the glory that followed. The time of reformation has come. The shadows disappeared. Worshipping shadows and not the substance only show some turn things upside down. We simply do not know the rest we have in Christ after and rudiment of this world after the traditions of men
Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ. For in him dwelleth all the fulness of the Godhead bodily.And ye are complete in him, which is the head of all principality and power:In whom also ye are circumcised with the circumcision made without hands, in putting off the body of the sins of the flesh by the circumcision of Christ: Buried with him in baptism, wherein also ye are risen with him through the faith of the operation of God, who hath raised him from the dead. And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses; 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; And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it. 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:Which are a shadow of things to come; but the body is of Christ. Col 2:8-17