Numbers 8:16

8:16 For they are entirely given to me from among the Israelites. I have taken them for myself instead of all who open the womb, the firstborn sons of all the Israelites.

Numbers 22:30

22:30 The donkey said to Balaam, “Am not I your donkey that you have ridden ever since I was yours until this day? Have I ever attempted to treat you this way?” And he said, “No.”