James clearly shows us the contrast between the wisdom of the world and the wisdom from above.
Pagans think and act in the wisdom of the world, which is unspiritual, sensual, and demonic. Being self confident in their own thinking, they think Christians are unsophisticated dummies. Yet, they are the fools (Psalm 14:1). So they live in their narcissistic culture filled with turmoil. “For where envy and rivalry are, there also are unrest and every vile deed.” James 3:16
Pagans are the devil’s prey. They have been snared by the devil and are “now entrapped by him to do his will.” 2 Timothy 2:26 They are children of the devil. 1 John 3:8-10
They belong to their father the devil. “You belong to your father the devil, and you want to carry out the desires of your father. He was a murderer from the beginning and has never stood for truth, since there is no truth in him. Whenever he tells a lie, he speaks in character, because he is a liar and the father of lies.” John 8:44 ISV
Just like the Church at Laodicea, they are blind to the truth and will not admit it.
“You say, I am rich, and have wealth stored up, and I stand in need of nothing; and you do not know that if there is a wretched creature it is *you*—pitiable, poor, blind, naked.” Revelation 3:17
Christians think and act in the wisdom from above. “Which of you is a wise and well-instructed man? Let him prove it by a right life with conduct guided by a wisely teachable spirit.” James 3:13
So, we strive for in peace. “The wisdom from above is first of all pure, then peaceful, courteous, not self-willed, full of compassion and kind actions, free from favouritism and from all insincerity. And peace, for those who strive for peace, is the seed of which the harvest is righteousness.” James 3:17-18
Submit yourselves, then, to God. Resist the devil, and he will flee from you. James 4:7
For I always beseech the God of our Lord Jesus Christ—the Father most glorious—to give you a spirit of wisdom and penetration through an intimate knowledge of Him, the eyes of your understanding being enlightened so that you may know what is the hope which His call to you inspires, what the wealth of the glory of His inheritance in God’s people, and what the transcendent greatness of His power in us believers as seen in the working of His infinite might when He displayed it in Christ by raising Him from the dead and seating Him at His own right hand in the heavenly realms, high above all other government and authority and power and dominion, and every title of sovereignty used either in this Age or in the Age to come. God has put all things under His feet, and has appointed Him universal and supreme Head of the Church, which is His Body, the completeness of Him who everywhere fills the universe with Himself. Ephesians 1:17-23
To you Gentiles also, who were dead through your offences and sins, which were once habitual to you while you walked in the ways of this world and obeyed the Prince of the powers of the air, the spirits that are now at work in the hearts of the sons of disobedience–to you God has given Life. 3 Among them all of us also formerly passed our lives, governed by the inclinations of our lower natures, indulging the cravings of those natures and of our own thoughts, and were in our original state deserving of anger like all others. But God, being rich in mercy, because of the intense love which He bestowed on us, caused us, dead though we were through our offences, to live with Christ–it is by grace that you have been saved–raised us with Him from the dead, and enthroned us with Him in the heavenly realms as being in Christ Jesus, in order that, by His goodness to us in Christ Jesus, He might display in the Ages to come the transcendent riches of His grace. For it is by grace that you have been saved through faith; and that not of yourselves. It is God’s gift, and is not on the ground of merit–so that it may be impossible for any one to boast. For we are God’s own handiwork, created in Christ Jesus for good works which He has pre-destined us to practise. Ephesians 2:1-10
“In conclusion, strengthen yourselves in the Lord and in the power which His supreme might imparts. Put on the complete armour of God, so as to be able to stand firm against all the stratagems of the Devil. For ours is not a conflict with mere flesh and blood, but with the despotisms, the empires, the forces that control and govern this dark world—the spiritual hosts of evil arrayed against us in the heavenly warfare. Therefore put on the complete armour of God, so that you may be able to stand your ground on the day of battle, and, having fought to the end, to remain victors on the field. Stand therefore, first fastening round you the girdle of truth and putting on the breastplate of uprightness as well as the shoes of the Good News of peace—a firm foundation for your feet. And besides all these take the great shield of faith, on which you will be able to quench all the flaming darts of the Wicked one; and take the helmet of salvation, and the sword of the Spirit which is the word of God. Pray with unceasing prayer and entreaty on every fitting occasion in the Spirit, and be always on the alert to seize opportunities for doing so, with unwearied persistence and entreaty on behalf of all God’s people. Ephesians 6:10-18
Unless otherwise noted, all Scripture quoted above is from the Weymouth New Testament WNT https://www.biblestudytools.com/wnt/