13 I had fainted, unless I had believed to see the goodness of the Lord in the land of the living.
1 Peter 1:3
3 Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead,
-Think about what David is saying here in Psalm 27. He didn’t get through the darkest hours of his life by simply believing that the Lord would reward him in Heaven; rather, he had eyes that saw God’s goodness on this side- “in the land of the living“. This is the same lively hope referenced by Peter; a hope that is not just good for the afterlife, but good for our lives right now. If we had to endure the troubles and heartaches of our present lives with only the promise of good things in the future, we really would faint. But surely the Lord is carrying our griefs and bearing our sorrows even now.