"Partnering With Hashem"

The Ohr HaChayim writes about Shmot 20:9 (on his commentary to 20:11) (Munk translation):

"G-d created the world for it to endure for 6 days. It follows that He has to renew creation, i.e. to issue a directive for the universe's continued existence every single day. The means He uses is the soul of the day called Shabbat, which He created by 'resting.' The fact that G-d desisted from creative activity after the sixth day resulted in the Sabbath coming into existence. Our Sages in Breishit Rabbah 10:9, indicate that prior to the Shabbos the world was in a constant state of turmoil. When the Sabbath came the world calmed down."

On a related note he adds another step relating to people on Breishit 2:2: "Only Sabbath observers keep the universe going.  Therefore the Sabbath observers have become G-d's partners by ensuring that G-d's universe survives for another six days."

I became aware of this in listening to R Abraham Twerky's presentation of October 11, 2016, YU Torah.