'Firstling' in the Bible

And you shall bring there your burnt offerings and your sacrifices and your tithes and {your donations} and your votive gifts and your freewill offerings and the firstling of your herd and your flock.

And you shall eat {before} Yahweh your God in the place that he will choose to make to dwell his name there the tithe of your grain, your wine and your olive oil and the firstling of your herd and your flock, so that you may learn to revere Yahweh your God {always}.

"Every firstling male that is born of your herd and of your flock you shall consecrate to Yahweh your God; you shall not do work with the firstling of your ox, and you shall not shear the firstling of your flock.