As I exhorted you to stay at Ephesus when I was going into Macedonia, that you might charge certain men not to teach a different doctrine,

 They went further. They held that each successive emanation knew less about God so that there came a stage in the series of emanations when the emanations were completely ignorant of him and, more, there was a final stage when the emanations were not only ignorant of God but actively hostile to him. So they arrived at the thought that the god who created the world was quite ignorant of and hostile to the true God. Later on they went even further and identified the God of the Old Testament with this creating god, and the God of the New Testament with the true God. 