Parashas Naso · Passuk 7:13
His offering: one silver bowl weighing 130 shekels and one silver basin of 70 shekels by the sanctuary weight, both filled with choice flour with oil mixed in, for a grain offering;
Chabad.org — English translation + Rashi
Source: Menachos 61a.
English: “And his offering was one silver dish” — Scripture tells that from the outset they were made only for the sake of the offerings.
In context: The vessels themselves were dedicated for sacrificial use; the midrash stresses the intentional sanctity of the gifts.
Custom
Chazal teach that the silver vessels brought by the princes were fashioned from the start for sacred service.