User blog comment:Lambda1/"We Happy Few" - Discussion/@comment-26982641-20160524194731

The thing is, Witches hurt her vessel. If you realize they targeted Amara, not the Darkness. They had a voodoo doll of her vessel. God was able to grant complete protection to Sam against magic. Magic only weakened her vessel, not her. About the angel smite, she absorbed it at this time, as you can see that there wasn't even a crater but still it weakened her again. Last time, she was hit by a mass smite, she was pulled out of her vessel and knocked out. This time, it enabled demons to attack her while she was super weak. In Lucifer's case, we don't know if the spear was powered up by God but it was possible. When Sam and Dean told to look for another hands, he said redundant and raise his hands up. Remember, Rod was able to physically hurt Lucifer so why not the Spear won't pierce through Darkness' vessel. God could effortlessly destroy/lock her but like in every hero-villain battles, the speaking side loses since the defeated one gains time. Also she caught God off-guard. Since they are equal, he can't overpower her if he was captured. (IMO, this writing)