w13 3/15 p. 28 par. 17:
"First, we must proclaim that name to others, recognizing that only those who 'call on the name of Jehovah will be saved.' (Rom. 10:13)"
(Emphasis mine)
Rom 10:13 says: "For “everyone who calls on the name of Jehovah will be saved.”" (Emphasis mine)
There's a big difference between "only" and "everyone".
on·ly
Adverb
And no one or nothing more besides; solely or exclusively: "there are only a limited number of tickets available".
eve·ry·one
Pronoun
Every person.