Rick Warren apparently doesn't understand this concept. He is one of those liars who is both incompetent and a hypocrite.
Whilst on Larry King Rick "liar" Warren made the following statement;
During the whole Proposition 8 thing, I never once went to a meeting, never once issued a statement, never--never once even gave an endorsement in the two years Prop 8 was going.
Apparently completely oblivious to the fact that he had previously issued a statement instructing his flock how to vote on prop 8. In this video you can see him, contrary to what he claimed on Larry King, Saying "let me say this very clearly. we support proposition 8, and if you believe what the bible say about marriage you need to support proposition 8"