Satan held a consultation with his evil angels. They did not all readily unite to engage in this hazardous and terrible work. He told them that he would not entrust any one of them to accomplish this work, for he thought that he alone had wisdom sufficient to carry forward so important an enterprise. He wished them to consider the matter while he should leave them and seek retirement, to mature his plans. He sought to impress upon them that this was their last and only hope. If they failed here, all prospect of regaining and controlling heaven, or any part of God’s creation, was hopeless. (SR 28.1) MC VC

Satan went alone to mature plans that would most surely secure the fall of Adam and Eve. He had fears that his purposes might be defeated. And again, even if he should be successful in leading Adam and Eve to disobey the commandment of God, and thus become transgressors of His law, and no good come to himself, his own case would not be improved; his guilt would only be increased. (SR 28.2) MC VC

He shuddered at the thought of plunging the holy, happy pair into the misery and remorse he was himself enduring. He seemed in a state of indecision: at one time firm and determined, then hesitating and wavering. His angels were seeking him, their leader, to acquaint him with their decision. They would unite with Satan in his plans, and with him bear the responsibility and share the consequences. (SR 28.3) MC VC