Here "Tyre" represents the people who live in Tyre. Alternate translation: "Yahweh will help the people of Tyre" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Isaiah compares the people of Tyre with a prostitute. Just as the prostitute sells herself for money to any man, the people of Tyre will again buy and sell to all kingdoms. Alternate translation: "And like a prostitute they will buy and sell will all the kingdoms of the earth" (See: [[rc://en/ta/man/translate/figs-metaphor]])