Lucifer succeeded and ordered his payment in the form of a letter of passage which would open a doorway into the Void outside creation. Lucifer opened the letter inside his club and used blood rituals and the name of God to nail the passage door open. This had caused everyone with a sixth sense of awareness to feel the gate's presence. The sons of Heaven became concerned since the gate was meant to close after one has passed through it. Amenadiel argued that as long as the gate remained opened, it would be a threat. Though they knew that Lucifer was not foolish enough to toy with the gate, there was always the fear that it could fall into the hands of someone who would.