 In 15, 18, 30, and 31, Moses referred to God as "Rock" (, "Tzur").The Jewish prayer book (, "siddur") echoes this Name for God in many places — in the hymn Adon Olam, which Jews often sing in the morning (, "Shacharit") prayer service; in one of the first blessings of the "Shema" (), "He gives light to the Earth" (, "ha-meir laaretz") on weekdays or "All will thank you" (, "ha-kol yoducha") on Sabbaths, which Jews recite as part of the morning (, "Shacharit") prayer service; in a following blessing of the "Shema", "May You be blessed" (, "Titbarach"); twice in another blessing of the "Shema" following the "Shema", "True and firm" (, "Emet veYatziv"); in the blessing of the "Shema" following that, "So they were for our ancestors" (, "Al haRishonim"); in the concluding words before the Amidah, "Rock of Israel" (, "Tzur Yisraeil"); in the Thanksgiving (, "Modim") prayer, which Jews recite as part of the Standing Prayer (, "Amidah") that forms the central prayer of the morning (, "Shacharit"), additional (, "Mussaf"), afternoon (, "Mincha"), and evening (, "Maariv"), prayer services; in the concluding prayer of the Standing Prayer (, "Amidah"), "My God, guard my tongue from evil," in each of those services; three times in the Supplication (, "Tachanun") or bowing of the head after the weekday Standing Prayer (, "Amidah"); in which Jews recite as the Psalm of the day on Wednesdays; in which Jews recite as the Psalm of the day on the Sabbath; in which Jews recite as the opening of the "Kabbalat Shabbat" (receiving or greeting the Sabbath) prayer service; in which Jews recite after singing "Lekhah Dodi" in the "Kabbalat Shabbat" prayer service, and again as part of the hymnal verses (, "Pesukei d'Zimrah") that begin the Sabbath morning (, "Shacharit") prayer service; seven times in the Sabbath-eve song (, "zemer") The Rock from Whom We Have Eaten (, "Tzur Mishelo Achalnu"); in which Jews recite as part of the hymnal verses (, "Pesukei d'Zimrah") that begin the Sabbath morning (, "Shacharit") prayer service; and in the blessing after reading the Haftarah.Many Jews recite the words, "as an eagle that stirs up her nest, hovers over her young," from as part of the declaration of intent before donning the tallit.