Soon the sun will set'- is that prophecy? No, it's merely an assertion of faith in the consistency of events.

Of course she's not afraid. She knows that the sun will rise again tomorrow.

For that sun, which we see rising every day, rises at His command… - Greg Tobin, The Wisdom of St. Patrick from St. Patrick’s Confession

The sun will rise again tomorrow,
vigilant and weary as hope.

Just like moons and suns,
With certainty of tides,
Just like hopes springing high,
Still I'll rise.

we still talk about the Sun “rising” and the Sun “setting.” It is 2,200 years since Aristarchus, and our language still pretends that the Earth does not turn.

"The sun rises every morning. I do not rise every morning; but the variation is not due to my activity, but to my inaction. Now, to put the matter in a popular phrase, it might be true that the sun rises regularly because he never gets tired of rising. His routine might be due, not to a lifelessness, but to a rush of life. The thing I mean can be seen, for instance, in children, when they find some game or joke that the specially enjoy. A child kicks his legs rhythmically through excess, not absence, of life. Because children have abounding vitality, they are in spirit fierce and free, therefore they want things repeated and unchanged. They always say "Do it afain", and the grown-up person does it again until he is nearly dead. For grown up people are not strong enough to exult in monotony. But God is strong enough to exult in monotony. It is possible that God says every morning, "Do it again" to the sun; and every evening, "Do it again" to the moon."

I rise.
Again. And again.
Not as the morning bird
whose song springs
to sudden glorious life
at the dawning of the light,
but as the sun
who touches the horizon
with tender fingertips
before reaching open arms
across the sky
to embrace another day
to weather the storms
to stand tall and breathe fire
and then to descend into rest
until it's time to rise again.
And again
I rise.

Yet the moonlight is the sunlight and the sun himself will pass.

Still I'll rise.

It is man's consolation that the future is to be a sunrise instead of a sunset.

It sounds plausible enough tonight, but wait until tomorrow. Wait for the common sense of the morning.

Defer not till tomorrow to be wise,
Tomorrow's sun to thee may never rise.

But one always awoke from a dream, just like the sun — which, though it would rise again, brought no fresh hope.