Suddenly, he realises that his research project is bigger than him. It is absolutely priceless. This 'light' will bring hope for tuberculosis sufferers (or even later, lung cancer patients) all over the world. Dave decided not to hide his research anymore. He makes up his mind too not to let greed mix into this 'salt' and loses its effectiveness to impact the world! If he hands over this research to a company, they may make the vaccine unreachable to poor people.
The Sermon on the Mount continues with salt and light analogies. God is so bent on blessing the world that He even sent His Son, Jesus to die for the sins of mankind. In others words, God gives His all. His 'light' is never once hidden. His 'salt' never loses its saltiness!
Jesus challenges all of us to be like God. In the same way, let your light shine before others, that they may see your good deeds and glorify your Father in heaven" (Matthew 5:16).
Be a blessing! Don't 'hide' our kingdom-living lives or 'shine' only for a select few. During Jesus' days, there were towns built on a hill. Still they are today in Israel. Those towns are plain for everyone to see. In the same way, let us shine Jesus for all to see! There are so many today trapped in darkness, groping along dark alleyways of worldly philosophies in a uncaring world. They need to be set free from all kinds of bondage! Jesus calls us 'light of the world' and if we are not shining, it is so 'oxymoronic'.
Salt is used mainly to add flavour to food and to preserve food for a longer period of time. Many people ask, 'can salt actually loses its saltiness?" The answer is yes. Salt loses its saltiness when it mixes with water or perhaps some kind of substance that dilutes its influence. Believers in Jesus are salt of the earth, influencers in the stinking world! If we lose the salt 'value', then it is good for nothing*.
All of us have been gifted in one way or another. Use whatever God has given us to influence lives for Jesus! We are saved to serve. We are purposefully created to accomplish God's purposes. And we do it for His glory!
*When Jesus says, 'thrown out and trampled underfoot' when salt loses its influence, He is NOT talking about Christians being thrown into hell when they do not produce results. Our Master Communicator just uses common things to illustrates His teachings. He is plainly saying that it is useless when salt has lost its saltiness, that's all.
Next: The Fulfillment of the Law (Matthew 5:17-20)