My covenant was with him of life and peace; rather, with him was life and peace. This is one side of the covenant, that which God gave—the blessing of life, abundance, prosperity, and secure and undisturbed enjoyment of these, in the everlasting priesthood, in agreement with the promise to Phinehas (Numbers 25:12; comp.
Deuteronomy 33:8-11). I gave them to him for the fear, etc. I gave him life and peace. The pronominal suffix "them" is not expressed in the Greek and Latin Versions, and is absent from many Hebrew manuscripts, which read, "I gave him fear."
So the Vulgate, Dedi eis timorem et timuit me; Septuagint, εδωκα αὐτῷ ἐν φόβῳ φοβεῖσθαί με, "I gave him the fear of me." This expresses man's part in the covenant: God gave him certain blessings on condition that he feared, reverenced, worshipped, and obeyed the Lord.
The last part of the verse as now read is more simply explained, "and (my covenant with him was, or, I gave him) fear, and he did fear me." God's gifts were life and peace. Levi's part was fear of God: this he performed.
The ideal priest observed all the duties of piety and reverence, and therefore in his case the covenant stood firm and was duly carried out.