Firstborn = Heir

Question 1

And thou shalt say unto Pharaoh, Thus saith the LORD, Israel is my son, even my firstborn:

Answer 1

Exodus 4:22

Question 2

To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,

Answer 2

Hebrews 12:23

Question 3

But we thy people, whom thou hast called thy firstborn, thy only begotten, and thy fervent lover, are given into their hands.

If the world now be made for our sakes, why do we not possess an inheritance with the world? how long shall this endure?

Answer 3

2 Esdras 6:58,59

Question 4

The Spirit itself beareth witness with our spirit, that we are the children of God:

And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.

Answer 4

Romans 8:16,17