You were perfect in your ways from the day you were created, Till iniquity was found in you. (Ezekiel 28:15 NKJV)
How could a good God create something evil? Many people think there must be good with the bad. Like yin and yang, darkness and light, but as you study the Bible, you get a different story. Lucifer (Satan, devil, dragon) was created perfect, without sin. Yet, today he is the father of evil. How did that happen? Isaiah 14:12-14 and Ezekiel 28:17 says that he became prideful because of his beauty. He wanted to become like God. A created being wanted to be on the same level as his creator. Of all places, this happened in heaven. Who could ever imagine that would be war in heaven? Revelation 12:4-9 says that there was war in heaven and the dragon (Satan), and all the angels he deceived were kicked out of heaven. And where do they go? To earth, and that is how sin started here.
Sin will not last forever. Jesus died so that we may have everlasting life. He is the solution to the sin problem. He has already taken back ownership of our world from Satan. It won’t be much longer before sin and death is destroyed
Satan is not happy because he knows his time is getting short.
Be sober, be vigilant; because your adversary the devil walks about like a roaring lion, seeking whom he may devour. (1 Peter 5:8 NKJV)
We have Jesus on our side. Our defense is:
Therefore submit to God. Resist the devil and he will flee from you. Draw near to God and He will draw near to you. Cleanse your hands, you sinners; and purify your hearts, you double-minded. (James 4:7-8 NKJV)
Your word I have hidden in my heart, That I might not sin against You. (Psalms 119:11 NKJV)
Put on the whole armor of God, that you may be able to stand against the wiles of the devil. (Ephesians 6:11 NKJV)