Parallel
Exodus 13:12
Brenton's English Septuagint · Berean Standard Bible
that thou shalt set apart every [offspring] opening the womb, the males to the Lord, every one that opens the womb out of the herds or among thy cattle, as many as thou shalt have: thou shalt sanctify the males to the Lord.
you are to present to the LORD the firstborn male of every womb. All the firstborn males of your livestock belong to the LORD.