Upvote:7
The “original sons” the passage speaks of refers to all twelve sons of Israel, since it reads as follows from Exodus 28:9–10:
“Take two onyx stones, and engrave on them the names of the tribes of Israel. Six names will be on each stone, arranged in the order of the births of the original sons of Israel.”
This is from the New Living Translation, which was the first English translation I found to include the phrase “original sons,” but other translations might be clearer, such as the same in the ESV:
“You shall take two onyx stones, and engrave on them the names of the sons of Israel, six of their names on the one stone, and the names of the remaining six on the other stone, in the order of their birth.”