Leviticus 23:17 "You shall bring out of your dwellings two wave-loaves of two tenth measures"

Shavuot is the festival celebrating the time when the Torah was given to us. The Torah is compared to bread.

They are both "the staff of life."

While bread sustains us and nourishes our bodies, the Torah is the life of our souls. On Shavuot, we are commanded to bring two breads as an offering to HaShem.