You are to bring there your burnt offerings and sacrifices, your tenths and personal contributions, your vow offerings and freewill offerings, and the firstborn of your herds and flocks.

Within your gates you may not eat: the tenth of your grain, new wine, or oil; the firstborn of your herd or flock; any of your vow offerings that you pledge; your freewill offerings; or your personal contributions.

You are to eat a tenth of your grain, new wine, and oil, and the firstborn of your herd and flock, in the presence of Yahweh your God at the place where He chooses to have His name dwell, so that you will always learn to fear the Lord your God.

“You must consecrate to the Lord your God every firstborn male produced by your herd and flock. You are not to put the firstborn of your oxen to work or shear the firstborn of your flock.

“If a man has two wives, one loved and the other unloved, and both the loved and the unloved have born him sons, and the firstborn son belongs to the unloved wife,

then on the day when he wills his possessions to his sons, he cannot treat the son of his loved wife as firstborn in place of the son of the unloved wife—the [actual] firstborn.

Instead he shall acknowledge the son of the unloved as the firstborn, by giving him a double portion of all that he has, for he was the beginning of his strength (generative power); to him belongs the right of the firstborn.

It shall be that her firstborn [son] will be given the name of the dead brother, so that his name will not be blotted out of Israel.

May the firstborn of his bull bring him honor, and may his horns be those of a wild ox; with them may he gore all peoples, all the far reaches of the earth. They are the ten thousands of Ephraim, and they are the thousands of Manasseh.