James 2:19 Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
This verse is true, you believe there is one God you do well. The demons believe there is one God.
John 3:16-18 (ESVST) . 17 For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him. 18 Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God.
Can demons believe in the atoning work of Jesus?
20 But wilt thou know, O vain man, that faith without works is dead?
Rom 6:22-23 (ESVST) . 23 For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord.
Eph 2:4-9 (ESVST) 4 But God, being rich in mercy, because of the great love with which he loved us, 5 even when we were dead in our trespasses, made us alive together with Christ — by grace you have been saved — 6 and raised us up with him and seated us with him in the heavenly places in Christ Jesus, 7 so that in the coming ages he might show the immeasurable riches of his grace in kindness toward us in Christ Jesus. 8 For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, 9 not a result of works, so that no one may boast.
2Ti 1:9 (ESVST) 9 who saved us and called us to a holy calling, not because of our works but because of his own purpose and grace, which he gave us in Christ Jesus before the ages began,
Tit 3:5 (ESVST) 5 he saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit,
I know people claim this speaks of the Mosaic law, but I believe it speaks of a lot more. Some people believe that if they do good to other people they will be saved. Some believe that their salvation depends on how many doors they knock on. Some people believe that just because they are a good person they will go to heaven. We can do "nothing" of our own to be saved. We can't be good enough, whether it is following the law, taking your elderly neighbor lunch, paying for the persons food behind you at McDonalds drive thru, going to church. (
Mat 7:21-23 (ESVST) . 22 On that day many will say to me, ' Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name? ' 23 And then will I declare to them, 'I never knew you; depart from me, you workers of lawlessness.) Faith in the atoning work of Jesus is the only way for salvation. There is no other way, none!
People say that you have to follow God's commandments to be saved, belief isn't enough. Belief is enough. Can you believe in Jesus and accept His sacrifice for your sins and not love Him? I don't think so. Jesus said, (
John 14:15 (ESVST) 15 " If you love me, you will keep my commandments.) We don't get and keep salvation from being doers of the Word, He said if you love me, you "WILL" keep my commandments.