Black Prairie rock of ages

I am the rain too cool
Late in the evening
I am the morning blue
Before birds sing
Hot in the afternoon
When I've nothing left
When I'm tempted to
Wake you from your rest
Wake you from your rest
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am the river wide
Cross me never
I am the mountainside
All kinds of weather
All kinds of weather
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am your rock of ages
I am the rain too cool
Late in the evening