This was reaffirmed in the New Testament when Peter quoted the same passage and referred to it as “the word that was preached to you” (1 Peter 1:24-25).
Muli itong binigyang katiyakan ng inulit ni Pedro ang mga salitang ito ni Isaias at sinabing ang salitang ito "ang Mabuting Balitang ipinangaral sa inyo" (1 Pedro 1:24-25).