The last chapter of Colossians includes Paul's last set of instructions for prayer and final greetings to the people from himself and all his fellow believers in chains.
Colossians 4:5-6
Be wise in the way you act toward outsiders; make the most of every opportunity. Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone.
Apostle Paul was talking about non-Christians when he said "outsiders". We must be careful in the way we act and practically live our lives, for if they know that we are believers of God and His Son Jesus Christ then we must shine as light and be like salt to them (Matthew 5:13-16). We must show them that the goodness that comes out of us is the result of His grace and our faith. Additionally, we must not be quick to judge those who are outside the church (1 Corinthians 5:12-13) for they know nothing about God, they do not know what they do and they live for themselves therefore we leave the judgment to the Most Powerful One.
Words can mentally and emotionally destroy a person like nothing else. As Christians we must not succumb to gossip or bad language no matter how tempting they can be or easy to commit for if we have clothed ourselves with righteousness then we have promised to turn from our evil ways (Romans 13:14). Our daily conversations must be seasoned with salt, wholesome, helpful and edifying to our fellowmen.
