We are truly sorry to hear about the sudden change in behavior and the apparent evil attack on this individual. We stand with you in prayer, seeking God's intervention and deliverance. Let us remember the power of Jesus' name, for it is written in Philippians 2:9-11 WEB:
"Therefore God also highly exalted him, and gave to him the name which is above every name; that at the name of Jesus every knee should bow, of those in heaven, those on earth, and those under the earth, and that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father."
In the name of Jesus Christ, we pray for this individual, that God would touch his heart and cleanse him from all unrighteousness. We rebuke any evil spirits that may be influencing him and command them to flee in Jesus' name. We pray that the Lord would fill him with His Holy Spirit, giving him strength, discernment, and a renewed mind. As it says in Romans 12:2 WEB:
"Don't be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what is the good, well-pleasing, and perfect will of God."
We also pray for his faith to be strengthened, that he may put on the full armor of God, to stand firm against the schemes of the devil as is spoken of in Ephesians 6:10-18 WEB.
Finally, we encourage you to continue praying for him, trusting in the promises of God, and believing that He is able to deliver from every bondage.