'First born' in the Bible

because whom He did foreknow, He also did fore-appoint, conformed to the image of His Son, that he might be first-born among many brethren;

who is the image of the invisible God, first-born of all creation,

And himself is the head of the body -- the assembly -- who is a beginning, a first-born out of the dead, that he might become in all things -- himself -- first,

and when again He may bring in the first-born to the world, He saith, 'And let them bow before him -- all messengers of God;'

by faith he kept the passover, and the sprinkling of the blood, that He who is destroying the first-born might not touch them.

to the company and assembly of the first-born in heaven enrolled, and to God the judge of all, and to spirits of righteous men made perfect,

and from Jesus Christ, the faithful witness, the first-born out of the dead, and the ruler of the kings of the earth; to him who did love us, and did bathe us from our sins in his blood,