This is a polite way to say "you will die." Alternate translation: "you will die and join your ancestors who have died before you" (See: [[rc://en/ta/man/jit/figs-euphemism]])
Being a prostitute is a metaphor for worshiping gods other than Yahweh. Alternate translation: "will start to be unfaithful to me" (See: [[rc://en/ta/man/jit/figs-metaphor]])