זָכ֛וֹר֩ אֶת־י֥֨וֹם הַשַּׁבָּ֖֜ת לְקַדְּשֽׁ֗וֹ
Remember the sabbath day, to keep it holy.
Shabbat Siddur Sefard Linear
“Preserve” and “Remember”44“Preserve” and “Remember” refers to the discrepancy between the two texts of the fourth commandment. Exodus (20:8) reads, “Remember the Sabbath day,” while Deuteronomy (5:12) reads, “Preserve the Sabbath day.” The Talmud (Shavuos 20b) explains that both words, שָׁמוֹר and זָכוֹר were miraculously pronounced by God simultaneously.