I’m sorry, I should have been more specific as to which form I was referring to. Your quote is from the Novus Ordo, the sixties version, liturgy-lite. Here’s the Tridentine version, the one that has been said for hundreds of years:
*"P. I wash my hands in innocence, and I go around Your altar, O Lord, giving voice to my thanks, and recounting all Your wondrous deeds. O Lord, I love the house in which You dwell, the tenting place of Your glory. Gather not my soul with those of sinners, nor with men of blood my life. On their hands are crimes, and their right hands are full of bribes. But I walk in integrity; redeem me, and have pity on me My foot stands on level ground; in the assemblies I will bless You, O Lord.
Glory be to the Father, and to the Son, and to the Holy Spirit. As it was in the beginning, is now, and ever shall be, world without end. Amen."*
The priest washes away his sins from his consecrated hands prior to touching the Blessed Sacrament. Why? Why does he go through this prayer if we are only to take the Blessed Sacrament in our sinful, unconsecrated hands,