3. In what specific ways does King call forth his experience as a preacher to lend persuasive power to the speech?

He evokes his experience as a preacher citing figures and biblical passages that compare the situation of blacks with enslaved peoples who were liberated by God.

Explanation:

He evokes his experience as a preacher citing figures and biblical passages that compare the situation of blacks with enslaved peoples who were liberated by God. With this, he makes a strong use of Pathos, evoking people's feelings to recognize themselves as the oppressed people of God who will receive the blessing of freedom. In addition, pathos serves to show his experience as a preacher, as he received many criticisms from religious leaders for his actions, but he wanted to show that he was also a religious leader and that he knew the Bible and the commandments of God and for it could recognize that God supported his actions.

answer: this is easy, i found "it"

i will repeat the question again, "find it."

here, i located it.