Bible Verses About The Mule: Carrying burdens

So Na'aman said, "If you won't take it, then please let your servant be given as much earth as two mules can carry; because from now on, your servant will offer neither burnt offerings nor sacrifices to other gods, but only to ADONAI.

Moreover, those who were near them - and even those as far as Yissakhar, Z'vulun and Naftali - brought food on donkeys, camels, mules and oxen: baked goods, fig cakes, clusters of raisins, wine, oil, and oxen and sheep in abundance; for there was joy in Isra'el.