Verses with the word firstborn in the Apocrypha (5 verses):
2 Esdras 6:58
But we thy people, whom thou hast called thy firstborn, thy only begotten, and thy fervent lover, are given into their hands.
Then Tobit said, Thou art welcome, brother; be not now angry with me, because I have enquired to know thy tribe and thy family; for thou art my brother, of an honest and good stock: for I know Ananias and Jonathas, sons of that great Samaias, as we went together to Jerusalem to worship, and offered the firstborn, and the tenths of the fruits; and they were not seduced with the error of our brethren: my brother, thou art of a good stock.
Wisdom of Solomon 18:13
For whereas they would not believe any thing by reason of the enchantments; upon the destruction of the firstborn, they acknowledged this people to be the sons of God.
Whom, being his firstborn, he nourisheth with discipline, and giving him the light of his love doth not forsake him.
O Lord, have mercy upon the people that is called by thy name, and upon Israel, whom thou hast named thy firstborn.