How do we know that comfort comes from God?

The sermon emphasizes that true comfort can only come from God. It is not found in worldly assurances or material possessions, for everything in this life is transient. Isaiah was commanded to speak comfort as directed by God, demonstrating that divine comfort is communicated through His chosen vessels. Spiritual comfort arises when God opens the eyes of His people to see His truths, enabling them to grasp the assurance of their salvation. God’s choice to communicate through prophets and ministers underlines His sovereign will to provide hope and assurance to His elect.