to Numbers 6:22-27.
The Lord spoke to Moses, saying, “Speak to Aaron and his sons, saying, Thus you shall bless the people of Israel: you shall say to them,
The Lord bless you and keep you;
the Lord make his face to shine upon you and be gracious to you;
the Lord lift up his countenance upon you and give you peace.
“So shall they put my name upon the people of Israel, and I will bless them.”
The red part is the standard Lutheran Benediction, also known as the Aaronic Benediction. Simply God's Holy Word.