4. Being made . . . better--by His exaltation by the Father (Heb 1:3, 13): in contrast to His being "made lower than the angels" (Heb 2:9). "Better," that is, superior to. As "being" (Heb 1:3) expresses His essential being so "being made" (Heb 7:26) marks what He became in His assumed manhood (Php 2:6-9). Paul shows that His humbled form (at which the Jews might stumble) is no objection to His divine Messiahship. As the law was given by the ministration of angels and Moses, it was inferior to the Gospel given by the divine Son, who both is (Heb 1:4-14) as God, and has been made, as the exalted Son of man (Heb 2:5-18), much better than the angels. The manifestations of God by angels (and even by the angel of the covenant) at different times in the Old Testament, did not bring man and God into personal union, as the manifestation of God in human flesh does.
      by inheritance obtained--He always had the thing itself, namely, Sonship; but He "obtained by inheritance," according to the promise of the Father, the name "Son," whereby He is made known to men and angels. He is "the Son of God" is a sense far exalted above that in which angels are called "sons of God" (Job 1:6; 38:7). "The fulness of the glory of the peculiar name "the Son of God," is unattainable by human speech or thought. All appellations are but fragments of its glory beams united in it as in a central sun, Re 19:12. A name that no than knew but He Himself."

JFB.