The time bomb in his chest and the fact he doesn't know when it will detonate symbolises two things. First the nature of mortality and that he does not know when he'll die. This is important given that sinning will send a Christian to hell so basically he is refusing to succumb to his temptation as he does not know when he might die and as such redemption or pennance may not be possible, besides which he may not have long to wait for salvation, hence him saying when it blows be somewhere safe (repent!) and then there's the worm food part which would relate to those who who didn't find that "safe place" and lived their live out of kilter with the teachings of Christ "suckers feel what suckers dealt" and "all your life you stuffed your face" switching the attack from the promiscuous and the lecherous to the greedy and the villainous. Seems pretty straight forward.
The woman at the bar represents temptation.
The time bomb in his chest and the fact he doesn't know when it will detonate symbolises two things. First the nature of mortality and that he does not know when he'll die. This is important given that sinning will send a Christian to hell so basically he is refusing to succumb to his temptation as he does not know when he might die and as such redemption or pennance may not be possible, besides which he may not have long to wait for salvation, hence him saying when it blows be somewhere safe (repent!) and then there's the worm food part which would relate to those who who didn't find that "safe place" and lived their live out of kilter with the teachings of Christ "suckers feel what suckers dealt" and "all your life you stuffed your face" switching the attack from the promiscuous and the lecherous to the greedy and the villainous. Seems pretty straight forward.