O LORD, who shall sojourn in your tent?
Who shall dwell on your holy hill?
He who walks blamelessly (uprightly KJV) and does what is right
and speaks truth in his heart; —Psalm 15:1-2 ESV
Charles H Spurgeon comments on Psalm 15
True believers do not
- cringe as flatterers,
- wriggle as serpents,
- bend double as earth-grubbers,
- or crook on one side as those who have sinister aims;
they have the strong backbone of the vital principle of grace within, and being themselves upright, they are able to walk uprightly. Walking is of far more importance than talking. He only is right who is upright in walk and downright in honesty.
Knowing God through His Word ... Day by Day 
Spurgeon faithfully walked the talk. (Of course, we do not play these against each other. “How shall they hear without a preacher.”) http://textsincontext.wordpress.com/2012/05/03/in-the-beginning/
God doesn’t want us talking we must walk what we believe. If we don’t we are a bad witness.