'Sabbaths' in the Bible

It's the Sabbath of all Sabbaths for you, so humble yourselves. This is to be a perpetual statute.

"Each of you is to fear his mother and father. "Observe my Sabbaths. I am the LORD your God.

"Count for yourselves seven years of Sabbaths seven times seven years. This set of seven weeks of years total 49 years for you.

Then the land will finally be pleased with its Sabbaths as long as it lies desolate while you are in the land of your enemies. At that time, the land will rest and take its Sabbaths.

As long as it lies desolate, it will have rest that it will not have had during your Sabbaths when you were living in it.