The Riddle of Strider is the poem written by Bilbo Baggins about Aragorn which also serves as a clue for Frodo to recognize the true Strider.

All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
From the ashes a fire shall be woken,
A light from the shadows shall spring;
Renewed shall be blade that was broken,
The crownless again shall be king.

There will be two translations: one more literal with lots of relative clauses, and another more laconical in vain with Ring Inscription with participles and gerundives.

Ûk zamash kulâ lûrz narthirâ,
Narûk zîg amash gabû lûtrâkuzû;
Za kû zamash kulâ bolg narnarkâ,
Nûz bugh narbazgâkuzû krintumirzi.
Hîshtumah ash ghâsh maugâ kulut runtaga,
Ash ghâzh bathumah maugâ htîlut;
Krufinaga kulâ maug zamash shotâkuz,
Ash rain shanar maugâ kulut nokhar arn.

Ûk lûrz narthirâ,
Narûk gabug kulû lûtraga;
Za kû zamash kulâ bolg narnarkâ,
Nûz bugh narbazgâkuzû krintumirzi.
Hîshtumah ash ghâsh runtat,
Ash ghâzh bathumah htîlat;
Krufinaga kulat za gand shotaga,
Ash rain shanar kulat arn nokhar.

• The Riddle of Strider at Tolkien Gateway