The article addresses the question of Jesus as sabbath rest in contrast to the Sabbath Day
Some say that Hebrews 4 teaches that the believer has entered the rest of Christ. Indeed it does that consistent with Matthew 11:28-30.
Yet it does more than that in my view.
Hebrews 4:1, 6, 9-11 speak of entering the permanent rest of God one day in Heaven while in the meantime laboring (1 Cor 15:58; 2 Cor 5:9) in obedience and taking the sabbath day rest.
Note that in Hebrews 4:9 sabbatismo (Greek G4520) is translated rest whereas everywhere else in Hebrews 4 the word translated rest is the Greek word katapauo (G2664).
So for me Hebrews 4:9 at least partly in its use of sabbatismo is declaring that Christians are to yet keep the Sabbath day in spirit though not in letter (Col 2:16; 2 Cor 3:6; Romans 7:6) for we have not yet obtained (remaineth) full rest (spiritual, mental, physical, emotional, etc.) or rest on every level.
And the sabbath day has always been about rest for the human body by taking some time to focus on God in a special way and away from the ordinary thorns and thistles of life (Gen 3).
But for those who hold the view that Hebrews 4 does not exhort us to take a sabbath day I suggest to you it is still good to take a day of rest weekly and to ensure your household takes one and if you are an employer to give your employees one (Exodus 20:10).