Track the Basis of Your Preaching Message, Dear Church - Psychology Based and Inverted Reading of Scripture
I've heard the concept that if we Christians merely talk about our problems, then we give them credence. I've heard a message that David glorified God, so don't use your tongue to talk about your problems. That message is psychologically based instead of biblically based. When we talk about our problems with defeat, then we fall into the trap defined by that psychological description, but merely talking about it doesn't mean we are talking about it in defeat. It's useful and right to talk about our problems in order to get power over them by seeing the truth about their real dimensions.
Be careful not to call human psychology biblical, and be sure not to use Scripture to validate something based on what it doesn't say. When David says he glorifies God and says positive things, well, that doesn't speak against mentioning negative things! David glorifies God, so don't you turn it into a message on how God doesn't want us to use our tongues to mention our problems. God doesn't want us to complain! There's already Bible for that! So, generalizing up to not at all speaking about problems is the wrong thing to do, forgetting the specific that is covered by the generality, that we can reduce our problems down to size by right speech.
Don't promote psychological concepts to the authority of Scripture, and don't use Scripture to promote a discount against the opposite of what it is saying. It's understandable how that mistake could be easily made, but think of a simplified example and see how it's not logical. If little Johnnie ran around the block today, that doesn't mean he never walks anyplace else! If David glorifies God with his tongue, that doesn't mean that David never mourns about his problems - indeed he does in that very same Psalter.