Rashi on Genesis 24:22/רש"י על בראשית כ״ד:כ״ב

1בקע BEKA (half a Shekel) — a symbol of the Shekels of the Israelites of which it is said (Exodus 38:26) “a Beka (half a Shekel) a head” (cf. Targum Jon).

2ושני צמידים AND TWO BRACELETS (the word for bracelet signifies something joined or united) — a symbol of the two Tablets of stone, joined one to another (Genesis Rabbah 60:6).

3עשרה זהב משקלם TEN SHEKELS OF GOLD WAS THEIR WEIGHT —a symbol of the Ten Commandments written on them (the Tablets) (Genesis Rabbah 60:6).