Footmen

Wilson's Dictionary of Bible Types

 Jeremiah 12:5 (c) The word represents ordinary Christians who walk with God and serve the Lord and His people. They may have very little of the glory of God about them, and not much holiness. If they make the man of the world weary so, that his company is not desired, then what would the worldling do, if he were taken to Heaven where Christians were glorified and are perfect and holy? Horses represent perfect Christians in Heaven.

Webster's Dictionary

(pl.) of Footman