Moses never commanded people to gather together for corporate worship on the Sabbath day, instead he told people to stay home and rest on the Sabbath. In reality it was forbidden to travel more than a Sabbath day’s journey from your home (just over half a mile). Only the priesthood where commanded to meet regularly for corporate worship on the Sabbath. This was for offering special Passover blood sacrifices. Corporate worship was required just three times a year: Passover (Pesach), Feast of Weeks (Shavuot), and Tabernacles (Sukkoth). The rest of the Jewish community were to stay at home and rest. The Bible commands that believers gather together regularly for corporate worship on an optional day of the week. The Mosaic Law concerning Sabbath was given to Jews only, up until the time Messiah died.
The practice of the early church (Acts 20:7) was to have corporate worship on Sunday: this was a decision, not a command. Importantly Jewish believers rested at home on Sunday and worshipped on Saturday.