Adam Clarke on Isaiah 57:19

I create the fruit of the lips - "The sacrifice of praise," saith St. Paul, Heb 13:15, "is the fruit of the lips." God creates this fruit of the lips, by giving new subject and cause of thanksgiving by his mercies conferred on those among his people, who acknowledge and bewail their transgressions, and return to him. The great subject of thanksgiving is peace, reconciliation and pardon, offered to them that are nigh, and to them that are afar off, not only to the Jew, but also to the Gentile, as St. Paul more than once applies those terms, Eph 2:13, Eph 2:17. See also Act 2:39.

Peace to him that is far off "That is, to the penitent; and to him that is near, i.e., the righteous." - Kimchi.