Sometimes evil tries to "creep" in

Joan Boney ... apostle/prophet

Sometimes evil (unbelief in God) is so subtil ... just as the serpent in Genesis 3 was described as "subtil" when he carried an idea to the woman Eve.

The purpose of devils and antichrist is to take us opposite from God... to get us to add to something God has said ... or to get us to take away from something God has said ... or to cause us not to believe what God has said.

Paul spoke of evil creeping in ...

II Tim. 3 ... 5 Having a form of godliness, but denying the power thereof:from such turn away. 6 For of this sort are they which creep into houses, and lead captive silly women laden with sins, led away with divers lusts, 7 Ever learning, and never able to come to the knowledge of the truth.

For us, often when evil tries to "creep into our thoughts", the Holy Spirit will counter and fight the evil by bringing the truth to our mind.

And as we renew our mind to the word of God, often we uproot evil that has crept into our thinking.

Romans 12 ...   beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. 2 And be not conformed to this world:but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.

I Peter 5 ... 7 Casting all your care upon HIM; for HE careth for you.
 
8 Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour:9 Whom resist stedfast in the faith, knowing that the same afflictions are accomplished in your brethren that are in the world. 10 But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, stablish, strengthen, settle you. 11 To him be glory and dominion for ever and ever. Amen.