What about the rest promised in Hebrews?
"Let us therefore fear, lest, a promise being left us of entering into His rest, any of you should seem to come short of it." (Hebrews 4:1).
So there is a ‘rest’ available to the Church Age, and it is possible to miss out on it through unbelief, as the Children of Israel did with their ‘rest’.
This ‘rest’ is in fact a ceasing from works of one’s own righteousness, and adopting the promise that, "there remains, therefore, a rest (literally, a keeping of a Sabbath) to the people of God. For he that is entered into His rest, he also has ceased from his own works, as God did from His" (Hebrews 4:9-10).
Keeping the Sabbath is the continuous rest to be enjoyed by believers in their fellowship with Yahuah/God, in contrast to the weekly Sabbath imposed by Old Testament Law.