'Mule' in the Bible

The king also said unto them, Take with you the servants of your lord, and cause Solomon my son to ride upon mine own mule, and bring him down to Gihon:

So Zadok the priest, and Nathan the prophet, and Benaiah the son of Jehoiada, and the Cherethites, and the Pelethites, went down, and caused Solomon to ride upon king David's mule, and brought him to Gihon.

And the king hath sent with him Zadok the priest, and Nathan the prophet, and Benaiah the son of Jehoiada, and the Cherethites, and the Pelethites, and they have caused him to ride upon the king's mule:

and Ahab saith unto Obadiah, 'Go through the land, unto all fountains of waters, and unto all the brooks, if so be we find hay, and keep alive horse and mule, and do not cut off any of the cattle.'