Peter exclaimed, "Depart from me; for I am a sinful man;" yet he clung to the feet of Jesus, feeling that he could not be parted from Him. The Saviour answered, "Fear not; from henceforth thou shalt catch men." It was after Isaiah has beheld the holiness of God and his own unworthiness that he was entrusted with the divine message. It was after Peter had been led to self-renunciation and dependence upon divine power that he received the call to his work for Christ.

Peter udbrød: "Gå bort fra mig, thi jeg er en syndig mand!" men alligevel klamrede han sig til Jesu fødder i følelsen af, at han ikke kunne skilles fra ham. Frelseren svarede: "Frygt ikke! fra nu af skal du fange mennesker." Det var efter at Esajas havde set Guds hellighed og sin egen uværdighed, at han fik det guddommelige budskab betroet. Det var efter at Peter var blevet ført til at forkaste sig selv og se sin afhængighed af guddomskraften, at han modtog kaldelsen til at arbejde for Kristus.