Eph. 6:10-12 A final word: Be strong with the Lord's mighty power. Put on all of God's armor so that you will be able to stand firm against all strategies and tricks of the Devil. For we are not fighting against people made of flesh and blood, but against the evil rulers and authorities of the unseen world, against those mighty powers of darkness who rule this world, and against wicked spirits in the heavenly realms.
It is so easy to minimize the warfare that is going on in our souls and in the world. Just because we can't physically see it happen, we tend to ignore it. It is not easy to live in victory in Satan's world! There is never a time on earth in which there is a ceasefire. Satan does not need sleep like we do. He is always on the prowl seeking whom he may devour. We immediately become easy prey when we let down our guard and try to live within our power and strength.
Only the Lord has the power to overcome Satan. Only the Lord can send Satan away in defeat. We must put on all of God's armor if we are going to prevail. We dare not leave any of what God provides for us behind. We need His righteousness, Word, fellowship, wisdom, and purity of heart. We need to stay continuously immersed in Christ and never leave His protective care.
The forces of evil are everywhere and they are way more than we can handle on our own. Don't ever underestimate the power and evilness of Satan, and never overestimate your power and strength to fight him.. You will fall into sin every time you encounter temptation on your own.
Don't underestimate the power of the Lord to help you. He is able to deliver you from whatever Satan throws at you. In Christ you will overcome your temptations to sin every time. In Christ, Satan cannot harm you. In Christ you will find protection for your soul.