God rested on the 7th day (24 hours)
I believe the Sabbath rest of the law is a mere shadow per Hebrews. The book speaks of the rest of God as not a day (24 hours) but the rest of an inheritance. Which the law also testifies to.
Ex 33:14 And he said, My presence shall go with thee, and I will give thee rest.
De 12:9 For ye are not as yet come to the rest and to the inheritance, which the LORD your God giveth you.
De 12:10 But when ye go over Jordan, and dwell in the land which the LORD your God giveth you to inherit, and when he giveth you rest from all your enemies round about, so that ye dwell in safety;
De 25:19 Therefore it shall be, when the LORD thy God hath given thee rest from all thine enemies round about, in the land which the LORD thy God giveth thee for an inheritance to possess it,
Which rest was in Joshua ( Jesus in Hebrews)
Jos 22:4 And now the LORD your God hath given rest unto your brethren, as he promised them: therefore now return ye, and get you unto your tents, and unto the land of your possession, which Moses the servant of the LORD gave you on the other side Jordan.
Heb 3:16 For some, when they had heard, did provoke: howbeit not all that came out of Egypt by Moses.
17 But with whom was he grieved forty years? was it not with them that had sinned, whose carcases fell in the wilderness?
18 And to whom sware he that they should not enter into his rest, but to them that believed not?
19 So we see that they could not enter in because of unbelief.
1 ¶ 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.
2 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it. {the word … : Gr. the word of hearing } {not being … : or, because they were not united by faith to }
3
For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.
4 For he spake in a certain place of the seventh day on this wise, And God did rest the seventh day from all his works.
5 And in this place again, If they shall enter into my rest.
6 Seeing
therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief: