Mankind has a common enemy and his name is Satan
Regardless of whether you are a Bible Believer or not, you have an enemy that hates you and desires to ruin your chance of ever knowing or sustaining a relationship with God. He hates God and all of God’s creation. His name is Satan. He is a fallen angel of God (Lucifer) that rose up against God while he was in heaven as he believed that he was equal with God. He convinced 1/3 of all the angels in heaven to side with him and they were all cast down from heaven to the earth when it was formless prior to the creation.

Satan and the fallen angels witnessed the creation and saw God create man in His own image and walk with the man and woman in the garden of Eden. He hated God’s creation and made it his prime purpose to separate them from God. He knew that man’s disobedience to God would create the separation and He succeeded in convincing the man and woman to disobey God causing them to be separated from God. By this disobedience SIN entered the world and it is SIN that separates us from God.
Here are a few videos to help you understand who Satan is and also the demons and people who serve him!
1 Peter 5:8 Be sober-minded; watch. Your adversary the devil prowls about as a roaring lion seeking whom to devour

Ephesians 6:10-20 – Put On The Full Armor of God
10 Finally, be strong in the Lord and in His mighty power. 11 Put on the full armor of God, so that you can make your stand against the devil’s schemes. 12 For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this world’s darkness, and against the spiritual forces of evil in the heavenly realms.
13 Therefore take up the full armor of God, so that when the day of evil comes, you will be able to stand your ground, and having done everything, to stand. 14 Stand firm then, with the belt of truth buckled around your waist, with the breastplate of righteousness arrayed, 15 and with your feet fitted with the readiness of the gospel of peace. 16 In addition to all this, take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one. 17 And take the helmet of salvation and the sword of the Spirit, which is the word of God. 18 Pray in the Spirit at all times, with every kind of prayer and petition. To this end, stay alert with all perseverance in your prayers for all the saints. 19 Pray also for me, that whenever I open my mouth, words may be given me so that I will boldly make known the mystery of the gospel, 20 for which I am an ambassador in chains. Pray that I may proclaim it fearlessly, as I should.
We don't go to a church, Because We are the Ekklesia!