We find in the Bible that God used animals and worked through them.
- God used ravens to feed Elijah (I Kings 17:2-6)
- God closed the mouths of lions (Daniel 6, especially verse 22)
Donkeys are mentioned over 70 times in the Bible.
A couple of key examples:
- The Good Samaritan (Luke 10:25-37, especially 34)
- Jesus rides into Jerusalem on Palm Sunday on a donkey (Matthew 21:1-11, especially verse 2)