Proverbs 10:9
He who walks with integrity walks securely,
But he who perverts his ways will become known.
Telling the truth has become a lost art. Its not that we are out there telling lies (although there is plenty of that going on). We are just not telling "the truth, the whole truth, and nothing but the truth." We sort of sneak up on the truth, circle the truth, tell part of the truth, but don't come right out and tell the whole truth. We give out just enough information to keep us out of trouble, but not enough to honor God.
When God asks us to be truthful, He isn't suggesting that we pick out the parts that make us look good. He wants us to deal in the whole truth. That's what it means to have integrity: to be "whole." If you want to be a person of integrity, don't break the truth into pieces. Keep it together, even if it invites criticism.