2 has in these last days spoken to us by His Son, whom He has appointed heir of all things, through whom also He made the worlds;
Since Christ is the Father’s only Son, He is the rightful and sole heir of all things. The correlation between Son and heir is important to the argument of Hebrews.
whom He has appointed heir of all things,
Beginning with this phrase and running through verse 3, there are seven portrayals of the superiority of the Son. The first here is that the Father designated the Son to be heir of “all things” (Ps 2:8-9). An “heir” inherits whatever the Father stipulates. His stipulation is that the Son will inherit “all things.” He will inherit everything the Father possesses. The Father appointed the Son heir of all things because the Son holds the highest status of anyone.
Jesus is the heir not only of the nations (Ps 2:8) but of the entire universe— “all things.” There is no indication of when God appointed the Son to be heir of all things. This appointment probably occurred at His exaltation to the right hand of God. His royal inheritance, which began at His exaltation, will be consummated at the end of the age (He 1:13; 2:8-9). He will receive both an initial inheritance and a consummated inheritance.
King Jesus, King of the Universe, will also reign on earth.
Sonship and heirship closely link to each other. The Son is eternally linked to the Father. He is heir because He is also the Creator. He inherits that with which He has always been connected. He inherits what He made. This possession shows the Son’s right to take authority and dominion over all things. Christ is the sovereign of the universe.
The Father appointed His Son as His heir because He only has one Son. Therefore, He has only one heir.
Christians are sons and heirs of God not in their own right. We are heirs because of our identity with Christ (Ro 8:14-17; Ga 4:4-7). There is no sonship and heirship without Christ.
The idea that the Son was “appointed heir of all things” concerns His mediatorial office. The messianic Psalm 2:8 related how the eternal Son will become heir to the nations of the world. Jesus will become heir because of the redemptive work in His body.
Adam failed in his role to gain dominion over various realms of creation by his sin. Jesus will regain what Adam lost. Our Lord will rule over the world in His messianic kingdom. The earth itself will be restored to its pristine beauty. One day Jesus will control all creation (He 2:8).