Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone. Colossians 4:6 NIV
What does our speech have to do with seasoning? Salt has two primary purposes, to bring out the flavor in foods and serve as a preservative. Used as a flavoring, it enhances the sweetness, like with watermelon. It can reduce acidity. For example, some may even add it to coffee to reduce the bitterness. As a preservative, salt absorbs the excess moisture in foods preventing spoilage.
When we share the message of Christ with others, we want to use salt. It is probably not the best approach to tell non-believers they are sinners and will burn in hell's eternal fire. Instead, we focus on God's love and how he sent Jesus for our salvation. Also, our language should be truthful yet done to encourage. As a preservative, our conversations should form and strengthen relationships.
God, grant that our conversations today be filled with your grace. May the salt of your love be in our words. May they preserve, encourage, and uplift. We pray this in the name of Jesus Christ. Amen.