טוּלוּ יְדֵיכוֹן קוּדְשָׁא כַּהֲנַיָא עַל דוּכַן קוּדְשָׁא וּבָרִיכוּ יַת יְיָ.
1. lift your hands… and bless | שְׂאוּ יְדֵכֶם... וּבָרְכוּ – This language recalls that found in Vayikra 9:22 when Aharon blesses the nation, leading the anonymous Northern French commentary to suggest that the verse refers to the priestly blessing and that the words "וּבָרְכוּ אֶת י"י" are not a call to bless Hashem, but rather to bless Israel with the blessing of Hashem. Cf. Radak who notes that "raising of the hands" is simply a gesture of prayer, not limited to the blessing of the priests, pointing to Eikhah 3:41, Tehillim 28:2 and 88:10 as evidence.
2. in holiness | קֹדֶשׁ – See Meiri and Malbim. Alternatively: "in the sanctuary" (Radak) or "towards the sanctuary" (Sforno).