Without a living faith in Christ as a personal Saviour it is impossible to make our influence felt in a skeptical world. We cannot give to others that which we do not ourselves possess. It is in proportion to our own devotion and consecration to Christ that we exert an influence for the blessing and uplifting of mankind. If there is no actual service, no genuine love, no reality of experience, there is no power to help, no connection with heaven, no savor of Christ in the life. Unless the Holy Spirit can use us as agents through whom to communicate to the world the truth as it is in Jesus, we are as salt that has lost its savor and is entirely worthless. By our lack of the grace of Christ we testify to the world that the truth which we claim to believe has no sanctifying power; and thus, so far as our influence goes, we make of no effect the word of God. “If I speak with the tongues of men and of angels, but have not love, I am become sounding brass, or a clanging cymbal. And if I have…
"Though I speak with the tongues of men and of angels, and have not charity, I am become as sounding brass, or a tinkling cymbal. And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing. And though I bestow all my goods to feed the poor, and though I give my body to be burned, and have not charity, it profiteth me nothing."
Ellen White directly references 1 Corinthians 13:1-3 in this passage.