You are the salt of the earth, but if the salt becomes tasteless, with what shall it be salted? For it has a strength for nothing anymore but to be throwing out and be trampled under by man. You are the light of the world. It is not possible to hide a city that is built on a mountain. Nor do they light a lamp and put it under a bushel, but on the lamp stand; and it shines for all those in this house. So, let your light shine before men, so that they may see your good works, it may glorify your Father in heaven.
All the sacred gifts that the Israelites set aside for God I give to you, to your sons, and to the daughters that are with you, as a due for all time. It shall be an everlasting (((covenant of salt))) before God for you and for your offspring as well.
In the Bible covenant=salt
When we choose to follow Yahshua a covenant is formed. In that covenant we are to pick up our cross and follow Him. According to scriptures John 1:1 In the beginning was the Word, and the Word was with Elohim, and the word was Elohim. So how we follow Him is by the word. We love what He loves and hate what He hates. John 14:6 Yahshua said to him, I am the Way, and the Truth, and the Life. No one comes to the Father except through me. So, when we follow Him we walk in the Way, the Truth and in Life, but if we walk away from Him we break the covenant.
Then Yahshua again spoke to them, saying, I am the light of the world. The one following me will in no way walk in darkness, but will have the light of life.
When we except Him we no longer walk in darkness, but in light. Darkness/sin cannot be where He is because darkness/sin separates us from Him.
We are the light and salt of the world and our walk should represent the covenant and our light should shine so bright that darkness flees. When people see us, they should see the Fruit of the spirit, they should see the very heart of the Father, they should see the truth of who He is and glorify our Father in heaven.