The apostle to the Gentiles, in his letter to the believers in Rome, calls attention to this characteristic of Isaiah's teaching. "Isaiah is very bold," Paul declares, "and saith, I was found of them that sought Me not; I was made manifest unto them that asked not after Me." Romans 10:20.

Hedningernes apostel henleder i sit brev til de troende i Rom opmærksomheden på denne side af Esajas undervisning. Paulus siger: "Esajas går så vidt, at ham siger: "Jeg blev fundet af dem, som søgte mig. Jeg gav mig til kende for dem, som ej spurgte efter mig." Rom. 10,20.