Achilles was a Greek War Hero from the Trojan war, who legend has it, was dipped into the river Styx in hades by the goddess Thetis by the heel which made his whole body invincible except his heel since the waters didn’t touche it. What Redford is saying here is that humanity is his weak spot or “Achilles’s heel” since he is doing inhumane acts.
when he says this line, a short clip of the “Shook Ones II” instrumental is played, a classic NY hip hop song, in reference of him bringing back NY style rap.
He’s saying once he did something terrible he will continue to do so since there is no way back, this why it was sampled in “Dance of the Devil” since that is the message of the song.
“comin” could also mean having an orgasm so he might imply to please women in every sense even sexual
“Eric” is the symbol of amERICan children who are Eminem’s main audience and who’s parents throw a fit over em’s music. he uses Eric and his female counterpart Erica (amERICA) in “White America when referencing children
it means a man who is living in poor conditions.
actually there are 100 but only 99 are known.
it also could be a double entendre. “raw” could also mean raw dogging, as in having sex without a condom
also the “FORTHcoming” could be the 4 in the series of numbers in the verse.
Also he could mean that there should be a revolution in america.