"The words which Christ addressed to His disciples were designed for all who should believe on His name: “Ye are the salt of the earth: but if the salt have lost his savor, wherewith shall it be salted? it is thenceforth good for nothing, but to be cast out, and to be trodden underfoot of men.” A profession of godliness without the living principle is as utterly valueless as salt without its saving properties. An unprincipled professed Christian is a byword, a reproach to Christ, a dishonor to His name. “Ye are the light of the world. A city that is set on an hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house. Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.” 2T 443.1"
"Ye are the salt of the earth: but if the salt have lost his savour, wherewith shall it be salted? it is thenceforth good for nothing, but to be cast out, and to be trodden under foot of men."
EGW directly quotes Matthew 5:13.