We tried Solomon and We placed on his throne a body

What is the meaning of His (SWT) saying: {And verily We tried Solomon and We placed on his throne a body; then he turned (to Allah). He said, My Lord, forgive me and grant me a kingdom such as will not belong to anyone after me. Indeed, You are the Bestower}?

An Enlightenment from the Sincerity of David

David, the youngest of his father’s sons — his father raised him to herd sheep and he was not even counted among the soldiers — and the slingshot used to throw the stones, none of the people thought that they would be the ones to end the battle.