Moshe now talks about the laws of inheritance. One special law is that a first-born son receives a double portion – twice the amount the other children receive.
Here’s a fascinating letter-play:
Of all 22 letters of the Aleph-Beis, there are only 3 letters that have a number value double the letter before it:
Beis (2) is double Alef (1)
Chaf (20) is double Yud (10)
Reish (200) is double Koof (100)
Put these three letters together – ב, כ, ר – and you get Bechor – בכר – meaning first-born… it’s the first-born-inherits-double law!