F.B. Meyer explores the theme of God's hiddenness in his sermon 'The Hidings of God,' reflecting on Isaiah 45:15. He discusses how God's presence is often felt yet unseen in nature, the world, and our personal lives, leading to feelings of abandonment and confusion. Meyer emphasizes that God's concealment serves a purpose, teaching us to walk by faith and not by sight, and that His love underlies all His actions, even when they seem mysterious. He reassures that God's ultimate plan is rooted in love and salvation, encouraging believers to trust in His divine wisdom. The sermon concludes with the affirmation that God's hiddenness is part of His greater redemptive purpose.