"... The passage of Leviticus 9:22 mentions the blessing of the people by Aaron after he offered sacrifices. The posture of the one giving the blessing is particularly notable, as the textual witnesses are not in agreement. According to the reading of one textual witness or another, it is possible to understand that Aaron raised either one hand (ידו) or both hands (ידיו). The textual difference is very minor, involving the presence or absence of the second yod (י). However, this question holds significant interest as it contributes to the understanding of the priest's posture while blessing the people. The divergences between textual witnesses suggest that either the posture evolved over time or it varied among communities. Rabbinic traditions often describe the priestly blessing with two hands raised, which appears to be the standard practice. Conversely, the Samaritan Pentateuch implies that Aaron raised only one hand ..."