scripture says He was buried and laid in the tomb on the High Sabbath, the 15th day, which begins the Feast of Unleavend Bread, the 7th day Sabbath.
It was my understanding that scripture recorded that, in keeping with Jewish law, He had to be buried and laid in the tomb on the preparation day, before the Sabbath began.
He was laid in the tomb on the preparation day-
He ‘rested’ on the Sabbath day, in the tomb.
even in death, He observed the Sabbath..