Salt and light are ingredients, and instruments of change,and we are considered as such .
Then Jesus spoke to them again, saying, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”(John 8:12).
“You are the salt of the earth; but if the salt loses its flavor, how shall it be seasoned? It is then good for nothing but to be thrown out and trampled underfoot by men. “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 5:13-16).
“But you, brethren, are not in darkness, so that this Day should overtake you as a thief. You are all sons of light and sons of the day. We are not of the night nor of darkness. Therefore let us not sleep, as others do, but let us watch and be sober. For those who sleep, sleep at night, and those who get drunk are drunk at night. But let us who are of the day be sober, putting on the breastplate of faith and love, and as a helmet the hope of salvation. For God did not appoint us to wrath, but to obtain salvation through our Lord Jesus Christ, who died for us, that whether we wake or sleep, we should live together with Him. Therefore comfort each other and edify one another, just as you also are doing”, (1 Thessalonians 5:4-11)
“Therefore, my beloved, as you have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling; for it is God who works in you both to will and to do for His good pleasure. Do all things without complaining and disputing, that you may become blameless and harmless, children of God without fault in the midst of a crooked and perverse generation, among whom you shine as lights in the world”,(Philippians 2:12-15).
“But the path of the just is like the shining sun, That shines ever brighter unto the perfect day. The way of the wicked is like darkness; They do not know what makes them stumble. My son, give attention to my words; Incline your ear to my sayings. Do not let them depart from your eyes; Keep them in the midst of your heart; For they are life to those who find them, And health to all their flesh. Keep your heart with all diligence, For out of it spring the issues of life. Put away from you a deceitful mouth, And put perverse lips far from you. Let your eyes look straight ahead, And your eyelids look right before you. Ponder the path of your feet, And let all your ways be established. Do not turn to the right or the left; Remove your foot from evil”, (Proverbs 4:18-27).
“Commit your way to the Lord , Trust also in Him, And He shall bring it to pass. He shall bring forth your righteousness as the light, And your justice as the noonday”.[Psalms 37:5-6]