It is written "Remember the Sabbath day to sanctify it," and, opposite it, "You shall not testify (falsely)," whereby Scripture apprises us that one who desecrates the Sabbath thereby testifies before Him who spoke and brought the world into being that He did not create His world in six days and did not rest on the seventh day, and that one who keeps the Sabbath thereby testifies before Him who spoke and brought the world into being that He created His world in six days and rested on the seventh day, as it is written (Isaiah 43:10) "You are My witnesses, says the L–rd … that I am He. Before Me no god was created and there will be none after Me."