קבלה אויף תהילים 145:10

Similarly, about this mystery of the Priestly blessing with the quality called “Thus-Koh-כה,” David, peace be upon him, said,²¹⁰Psalms 145:10 “All Your works shall thank you, HaShem-יהו״ה, and Your devout ones will bless You-Yevarchuchah-יברכוכה,” which specifically concludes with “Koh-כה” filled with the letter Hey-ה.²¹¹That is, the word “will bless You-Yevarchuchah-יברכוכה” of this verse is specifically spelled with the suffix Koh-כ״ה, rather than the normal spelling “will bless You-Yevarchucha-יברכוך.” It is as if he is saying,²¹²Numbers 6:23 “Thus-Koh-כה shall you bless.”