The gospel is the hope that we need in our complaint and our lament. No matter how dark things feel, we have a Saviour who walked out of His grave and who will split the skies some day soon and wipe every tear from our eyes. And so we can tell God how it feels, be honest with Him about how things seem, and bring our humble complaints to Him. But the gospel reminds us that we do know how it's all going to end.
Psalm 29 summons us to see that the very thing that causes us to ask “where is God?” is the very sign of His presence. The very thing that makes us wonder if God is in control is the very thing which is demonstrating that He is in control.