Eloquence isn't necessarily flowery language so much as heartfelt expression. Consider this prayer of a country preacher in Red Rock, Mississippi:
"O Lord, give Thy servant this mornin' the eyes of the eagle and the wisdom of the owl; connect his soul with the gospel telephone in the central skies; 'luminate his brow with the Sun of Heaven; possess his mind with love for the people; turpentine his imagination; grease his lips with 'possum oil; loosen his tongue with the sledge hammer of Thy power; 'lectrify his brain with the lightnin' of the word; put 'petual motion on his arms, fill him plum full of the dynamite of Thy glory; 'noint him all over with the kerosene oil of Thy salvation and set him on the fire. Amen!"
Wheaton: Tyndale House Publishers, Inc., Illustrations Unlimited, by Editor James S. Hewett