““You are the light of the world. A city that is set on a hill cannot be hidden. Nor do they light a lamp and put it under a basket, but on a lampstand, and it gives light to all who are in the house. Let your light so shine before men, that they may see your good works and glorify your Father in heaven.” Matthew 5:14-16 NKJV
Different functions 1. Salt is hidden but light is obvious. 2. Salt works secretly while light works openly. 3. Salt works from within,light from without 4. Salt speaks of the indirect influence of the gospel while light pictures its direct communication.
Conclusion : Has God spoken to you about your own testimony ? Are you a light for Jesus? Could you be doing better? Are you even saved? Do you have people on your heart that you want to bring to the Lord in prayer? Whatever the need, respond to Him and let Him have His perfect way in your life.