So Jesus answered and said to them, “Have faith in God.  23 For assuredly, I say to you, whoever says to this mountain, ‘Be removed and be cast into the sea,’ and does not doubt in his heart, but believes that those things he says will be done, he will have whatever he says. Mark 11:22-23 NKJV

“Have faith in God”—literally means, have the faith of God; have the faith that God gives. The God kind of faith is: to say it, don’t doubt it, believe and receive it. What’s important here is to have faith in God—not in the devil. Some people have more faith in the devil than they do in God. Your faith is evidenced by what you say, because that’s what you believe in your heart (Matt. 12:34). If you speak the truth of God, you will experience the goodness of God; if you speak the lies of the devil, you will also, but disappointedly, have what you say. So, don’t open the door!

How do you open the door to the devil? The devil is your arch enemy and chief adversary. You open the door to him by the words that come out of your mouth (Prov. 21:23). For example, giving credit to the devil for every ill and problem that occurs in your life—saying things like “the devil this and the devil did that.” You must stop bragging on, and giving glory to the devil. Don’t give him a foothold and an opportunity to devour you (Eph. 4:27; 1 Peter 5:8).

Jesus taught that the devil is a murderer and a liar (John 8:44), and that he is defeated (Rev. 12:10; Col. 2:15). So, don’t open the door to lies and destruction. Be careful. You’ll have whatever you say. Furthermore, you are commanded to submit your life unto God and resist the devil and he will flee from you (Jas. 4:7). If God be for you, who can be against you? (Rom. 8:31).

You are of God and from God, and through faith, have overcome the principalities and powers of the devil; “because greater is He who is in you than he who is in the world” (1 John 4:4). Let the words of your mouth confess that you have overcome the devil. Don’t open the door by believing and saying the lies of the devil.  Shut the door because you’ll have what you say!