(African-American Vernacular) The speaker purports that he has told the truth or is trustworthy.

anecdotal evidence is not adequate to prove something

A promise that one makes should be or can be considered a promise that one will certainly honor.

(idiomatic) Which point of view is considered or whose interests are used as a basis.

(chiefly US, politics) Ultimately, constituents and voters are concerned most about issues that affect their personal lives and home communities, and they vote accordingly.

(idiomatic) Not saying anything is often better than speaking too much or saying something inappropriate.