He that blesseth his friend - He who makes loud and public protestations of acknowledgments to his friend for favors received, subjects his sincerity to suspicion; and remember the Italian proverb elsewhere quoted: - "He who praises you more than he was wont to do, has either deceived you, or is about to do it." Extravagant public professions are little to be regarded.
The picture of the ostentatious flatterer going at daybreak to pour out blessings on his patron. For any good that he does, for any thanks he gets, he might as well utter curses.