What are the poetic devices in the song redemption song?

"Redemption Song" by Bob Marley uses poetic devices such as metaphor ("emancipate yourself from mental slavery"), imagery ("won't you help to sing these songs of freedom"), and repetition ("emancipate yourselves from mental slavery; none but ourselves can free our minds") to convey powerful messages of liberation and empowerment. The song's lyrics are reflective and encourage self-reflection and personal growth.