For those that murdered me shall stand before God
To fall at the hands of fate, then out comes the rod
from Wu-Tang Clan (Ft. Isaac Hayes) – I Can't Go To Sleep Lyrics 1 on Rap Genius

Ghostface is obviously in an incredibly paranoid state in this verse. He states that his eventual murderer shall be divinely punished. The rod here refers to the staff, which has the power of God to effect change
Continuing from the previous lines implicating the government in systematic oppression of black people, Ghostface states that ultimately, God will punish those who committed these evils; from slavery to causing the 80’s crack epidemic
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