How about these verses for invincible ignorance:
34And Peter opened his mouth and said: “Truly I perceive that God shows no partiality, 35but in every nation any one who fears him and does what is right is acceptable to him.” (Acts 10:34-35)
47And that servant who knew his master’s will, but did not make ready or act according to his will, shall receive a severe beating. 48But he who did not know, and did what deserved a beating, shall receive a light beating. Every one to whom much is given, of him will much be required; and of him to whom men commit much they will demand the more. (Luke 12:47-48)