This text is given by God when He is preparing them to move from slavery to the freedom of the Promised Land. It is He who takes the initiative to bless His people, and we see His desire to do the same. This is not just a momentary experience, but He promises to keep His people.
Numbers 6:24-26 English Standard Version (ESV)
24 The Lord bless you and keep you;
25 the Lord make his face to shine upon you and be gracious to you;
26 the Lord lift up his countenance[a] upon you and give you peace.