Tamid 5:1

(1) The superintendent said to them: “Say one blessing,” And they blessed. They recited the Ten Commandments (Exodus 20:2–13 (20:2–14 in NJPS) or Deuteronomy 5:6–17 (5:6–18 in NJPS)), “Hear, [O Israel . . .]” (Deuteronomy 6:4–9), “And it shall come to pass, if you hearken . . .” (Deuteronomy 11:13–21), “And the Lord spoke . . .” (Numbers 15:37–41). They blessed the people with three blessings: “True and enduring” [the blessing that follows the Shema prayer in the morning prayer service], Avodah [the blessing that many Jews say as part of the Amidah prayer calling for Divine acceptance of the Temple service], And the Priestly Blessing (Numbers 6:24–26). And on the Sabbath, they added a blessing for the [priestly] watch that was leaving.