He couched, he lay down as a lion, and as a great lion. — The Hebrew labi (great lion) should be rendered “a lioness,” as in Numbers 23:24. The image of a lion connects this verse with the preceding verse: “he shall eat up the nations.” (See Note on Numbers 23:24.)
Blessed is he that blesseth thee... — Compare the original blessing which was pronounced upon Abraham by the Lord (Genesis 12:3), and which was afterwards adopted by Isaac in the blessing which he pronounced upon Jacob (Genesis 27:29).