You saying a demon OUGHT to believe God has atoned for their sins?
You are tying to make FAITH a magical word. It is not. It is our trust confidence. Evidence of things unseen. hebrews 11
"Nowhere do we read of fallen angels having faith."
James 2
19You believe that God is one. You do well; the demons also believe, and shudder.
The entire point of this verse is to show you demons have faith.
Mark 5
6Seeing Jesus from a distance, he ran up and bowed down before Him;
7and shouting with a loud voice, he said, “What business do we have with each other, Jesus, Son of the Most High God? I implore You by God, do not torment me!”
8For He had been saying to him, “Come out of the man, you unclean spirit!”
9And He was asking him, “What is your name?” And he said to Him, “My name is Legion; for we are many.”
10And he
began to implore Him earnestly not to send them out of the country.
11Now there was a large herd of swine feeding nearby on the mountain.
12The demons implored Him, saying, “Send us into the swine so that we may enter them.”
13Jesus gave them permission. And coming out, the unclean spirits entered the swine; and the herd rushed down the steep bank into the sea, about two thousand
of them; and they were drowned in the sea.
Here right away the demon LEGION BOWS before Jesus, IMMEDIATELY believes he is SON OF GOD.
What does the Demon do? HE PRAYS! He asks Jesus not to torment him, He REQUESTS for Jesus to send them to the heard of swine.
Jesus could have said NOPE off to hell with you. VERSE 13 JESUS GAVE THEM PERMISSION.
Whats sad here is DEMON who hates Jesus CAN TRUST JESUS WITH A REQUEST, CAN YOU?
If this demon had no faith he wouldn't of even have bothered.