Quotation_auto_tanakh על במדבר 6:23

In Leviticus 9:22, we find that after he completed the Divine offering, Aaron lifted up his hands and blessed the people. In a like manner, his descendants, the Kohanim, uttered the priestly blessing after performing the Temple Service. In our days, on the occasions when the kohanim recite the priestly blessings, they do so immediately after the “We are thankful” prayer which terminates the Avodah (Service) section of the Shemoneh Esrei. When Kohanim do not recite the blessings, the blessings are mentioned by the Chazzan in his repetition of the Shemoneh Esrei.—Avudraham

And Adonoy spoke to Moses, saying, Speak to Aaron and to his sons, saying, thus shall you bless the Children of Israel, say to them:

Hashem spoke to Moses, saying: Speak to Aaron and to his sons, saying: So shall you bless the children of Israel. Say to them: May Hashem bless you and guard them. May Hashem illuminate His countenance upon you and be gracious to you. May Hashem lift His countenance toward you and give you peace. They shall place My name upon the children of Israel and I will bless them.