The call to repentance was sounded with unmistakable clearness, and all were invited to return. "Seek ye the Lord while He may be found," the prophet pleaded; "call ye upon Him while He is near: let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the Lord, and He will have mercy upon him; and to our God, for He will abundantly pardon." Isaiah 55:6, 7.

Opfordringen til omvendelse blev givet på en måde, som ikke var til at tage fejl af, og den gjaldt alle. "Søg Herren, mens han findes," sagde profeten, "kald på ham, den stund han er nær! Den gudløse forlade sin vej, urettens mand sine tanker og vende sig til Herren, at han må forbarme sig, til vor Gud, thi han er rund til at forlade." Es. 55,6-7.