What is the significance of true faith in Christ?

In John 1:12-13, we find that 'as many as received him, to them gave he power to become the sons of God, even to them that believe on his name; which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.' True faith is not based on seeing miracles but on a God-given understanding of Christ as Savior. Unlike Nicodemus, who acknowledged Jesus as a teacher based on miracles, those with true faith recognize Him as the Lamb of God, enabling spiritual insight and acceptance of His grace and mercy.