I Need Wisdom!

Fear is the beginning knowledge. Fear is the presupposition to gaining access to the things denoted in verses 1-6 (and the rest of the scriptures, for sure). So, if the fear of the Lord is the how, then I suspect you might be asking something like...how do I fear the Lord. What does it mean to actually fear God?

Words Matter

The one who rightly guards his mouth is intimately acquainted with the readiness of the sin in his heart and realizes, knowing in advance, that his words can be his undoing; that his words may harm others and pierce like a sword and could possibly even destroy his neighbor; that words have power to not only ruin the life of others, but even his own life...his own soul (as Henry puts it).