דברים ל״ב:ג׳
For the name of יהוה I proclaim;
Give glory to our God!
Give glory to our God!
רש"י על דברים ל״ב:ג׳:א׳
כי שם ה' אקרא WHEN I SHALL CALL THE NAME OF THE LORD [ASCRIBE YE GREATNESS UNTO OUR GOD] — You see, כי is here used in the meaning of “when”, similar to (Leviticus 23:10) “When (כי) ye come into the land”. The meaning is: when I proclaim and mention the Name of the Lord, YE ASCRIBE GREATNESS TO OUR GOD and bless His name. From here they (the Rabbis) derived the law that people make the response, “Blessed be the Name of His glorious Kingdom for ever and ever", after the recital of a Benediction in the Temple (Sifrei Devarim 306:37; Berakhot 21a; Taanit 16b).
ברכות כ״א א:ד׳
And from where is the mitzva by Torah law to recite the blessing over the Torah before it is read, derived? As it is stated: “When I proclaim the Lord’s name, give glory to our God” (Deuteronomy 32:3), meaning that before one proclaims the Lord’s name by reading the Torah, he must give glory to God.
ברכות מ״ה א:ו׳
GEMARA: With regard to the basic mitzva of zimmun, the Gemara asks: From where are these matters derived, that after a meal in which three diners participated, a zimmun must be recited? Rav Asi said: As the verse states: “Praise God with me, and we will exalt His name together” (Psalms 34:4), i.e., the one reciting the blessing turns to at least two others to praise God together. Rabbi Abbahu said: The source of the mitzva of zimmun is derived from the verse here: “When I call the Name of the Lord, give [plural] praise to our God” (Deuteronomy 32:3).