Stand in the Gap
When you know someone is hurting or stumbling in their faith, be the arms and feet of Jesus by standing in the gap for them! Pray for them, comfort them and lift them up in Christ. You reaching out may be exactly what they need to make it through.
Warfare Declarations by Kathy Degraw is a great resource to fight spiritual warfare: https://www.amazon.com/Warfare-Declarations-Power-Decreeing-Spiritual/dp/1707407215