Cherubims-Chariots of God

Cherubims, what are they? What did God do with them? They are a mystery even to Bible scholars. Cherubims are first mentioned in the Holy Bible at the end of Genesis Chapter 3. In Exodus, 2 small models of Cherubims are on the Ark of the Testimony (Ark of the Covenant).
The Ark of the Covenant was first put in the Tabernacle in the most holy place. Later when the Temple of Solomon (Temple of God) was built, the Ark was put in the most holy place, or Oracle. Solomon made 2 large models of Cherubims within the Oracle of the Temple.
Cherubims are not imaginary figures. They are not angels. They are not mere ornaments. God used them mightily! David saw God ride and fly on a Cherub! Ezekiel saw four of them! He called them 'living creatures' before he knew their name. God used the Cherubims to fight for Israel in the Old Testament. Will God use them again?