In an interview with The Sun, Muamba revealed he asked God to protect him before the cup clash, which was abandoned after his collapse.
Muamba said: "Someone up there was watching over me.
"What happened to me was really more than a miracle.
"On the morning of the game I prayed with my father and asked God to protect me - and he didn't let me down.
"I am walking proof of the power of prayer. For 78 minutes I was dead and even if I lived was expected to have suffered brain damage.
"But I'm very much alive and sitting here talking now. Someone up there was watching over me."