To those who have been given faith, every star, ocean, hair, sparrow, child, storm and mountain serves Jesus Christ. All things were made by Him, for Him. Because we have been quickened by Him, because we are not of this world but of God, we understand this and believe. The "evidence" is everywhere, most especially in Scripture, and there we learn of our salvation.
"There is not one blade of grass, there is no color in this world that is not intended to make us rejoice" -- John Calvin
To the condemned of this world, Jesus Christ remains unknown. The condemned still sleep. They are lost and don't even know it.