Both in the cases of Dhul-Qarnayn and Talut, they were Mahdis who did not ask for any wage. "Follow those who do not ask you for any wage and who have received guidance." (Surah Ya Sin, 21) Dhul-Qarnayn and Saul are the Mahdis of their time, not prophets. And Goliath was the dajjal of his time, when Saul was the Mahdi. - Harun Yahya