So what? Salvation in Christ is the subject or Romans 10. It speaks of God as sending out the message. It speaks of people hearing the message. It speaks of some who reject the message and some who receive the message. And it speaks of Jesus saving everyone who responds favorably to the message.
Certainly, especially for the saved, God does not limit His messages to the subject of salvation. He is interested in more than that. When He provides a way of escape from temptation (1 Cor 10:13), for instance, or when He corrects us when we disobey (Heb 12), His message is plain and clear. We hear it and act on it by trusting what He communicates and doing accordingly or not. The general statement of Romans 10:12 applies to all the communications of God with man, including His specific communication to individuals concerning salvation.
yes, a divine message, the gospel message was in its infant stage.
And you still have no real concept of what faith even is. I would appreciate it if you would stop using my thread to further exploit the "believing in Gods word" false teaching. Faith is a personal surrender to Him, and a life inspired by such surrender. "believing" in Gods word will avail nothing.