Matthew Henry and continuators on Proverbs 25:14

14 Whoso boasteth himself of a false gift is like clouds and wind without rain.

He may be said to boast of a false gift, 1. Who pretends to have received or given that which he never had, which he never gave, makes a noise of his great accomplishments and his good services, but it is all false; he is not what he pretends to be. Or, 2. Who promises what he will give and what he will do, but performs nothing, who raises people's expectations of the mighty things he will do for his country, for his friends, what noble legacies he will leave, but either he has not wherewithal to do what he says or he never designs it. Such a one is like the morning-cloud, that passes away, and disappoints those who looked for rain from it to water the parched ground (Jude 12), clouds without water.