'First born' in the Bible

And she brought forth her firstborn son, and wrapped him in swathingclothes, and laid him in a manger, because there was no room for them in the inn.

as it is written in the law of the Lord: "Every firstborn male shall be called holy to the Lord,"

For he determined beforehand that those whom he foreknew should be conformed to the image of his Son, in order that he might be the firstborn among many brethren.

who is the image of the invisible God, the firstborn of the whole creation;

And he is the head of the body, the church; since he is the beginning, the firstborn from the dead, that he may be in all things preeminent;

Through faith he kept the passover, and the sprinkling of the blood, that he who destroyed the firstborn might not touch them.

and to the church of the firstborn, who are enrolled in heaven; and to God the Judge of all, and to the spirits of righteous men made perfect;

and from Jesus Christ, the faithful witness, the firstborn of the dead, and the ruler of the kings of the earth. To him that loveth us, and washed us from our sins in his own blood,