1 Chronicles 29:15 ESV
For we are strangers before you and sojourners, as all our fathers were. Our days on the earth are like a shadow, and there is no abiding.
Our life on earth is but a shadow of who we are in the light of Christ. Abiding is only possible when we abide with Him. When we look to Christ, we leave the shadows behind.
When one remains in the shadows, life ends on earth as a shade. From the earth they will never rise.
Sheol beneath is stirred up
to meet you when you come;
it rouses the shades to greet you,
all who were leaders of the earth;
it raises from their thrones
all who were kings of the nations.
O Lord our God,
other lords besides you have ruled over us,
but your name alone we bring to remembrance.
They are dead, they will not live;
they are shades, they will not arise;
to that end you have visited them with destruction
and wiped out all remembrance of them.