What does the metaphor feeling fears echo mean?

Which of the following quotations reveal an omniscient point-of-view? a. "then the king got his spear in both his hands and ran toward sir mordred, crying, 'traitor, now has thy death-day come! '" b. "and the king thought that under him, far from him, was hideous deep black water; therein were all manner of serpents and worms and wild beasts, foul and horrible." c. "but when the hosts on both sides saw that sword drawn, they blew trumpets and horns and shouted grimly, and the two hosts rushed toward each other." d."then they agreed that king arthur and sir mordred should meet between their two hosts, and that each of them should bring fourteen persons with him."

Pls, i really need on this question?

What is most likely nelson mandela's purpose of using third person point of view after introducing himself in his introductory paragraphs