While both Mark, chapter 6:51, and John, chapter 6:21, have Jesus enter the boat, only Matthew has this revelation about Jesus as the Son of God, no longer just the Son of Man. When Jesus and Peter got into the boat (καὶ ἀναβάντων αὐτῶν εἰς τὸ πλοῖον), the wind stopped or abated (ἐκόπασεν ὁ ἄνεμος). Those in the boat worshiped Jesus (οἱ δὲ ἐν τῷ πλοίῳ προσεκύνησαν αὐτῷ). They said he truly was the Son of God (λέγοντες Ἀληθῶς Θεοῦ Υἱὸς εἶ), no questions asked. This was a clear proclamation by his followers that Jesus was divine, the Son of God. Apparently, the multiplication of the bread and fishes plus the walking on water had finally convinced them that Jesus was more than a mere mortal.
Yahweh, via Hosea, had second thoughts about the destruction of Israel. How could he give Ephraim up? How could he hand over Israel? He could not make them like Admah and Zeboiim, two of the five cities destroyed with Sodom and Gomorrah in Genesis, chapter 19. His heart was compassionate with warm tenderness. He decided not to execute his fierce anger against Ephraim. Yahweh was God, not a mere mortal. He was the Holy One in their midst. He was not going to come in anger.
Yahweh spoke to Ezekiel with the title, the son of man, a mere mortal. He told him to stand up on his feet, because he wanted to speak with him. When Yahweh spoke to Ezekiel, the Spirit entered into Ezekiel. Yahweh set him on his feet. Then Ezekiel heard Yahweh speaking to him, as if he was not directly speaking to him. Yahweh told Ezekiel that he was sending him to the people of Israel, a nation of rebels that had rebelled against Yahweh. Both their ancestors and they themselves have transgressed against Yahweh even to this very day.
God knew about the situation of David. He had gathered the tears of David and kept a record of it. His enemies would retreat if David were to call on God. He was sure of himself because God was on his side. He praised God. He praised Yahweh. He trusted in God. Thus he was not afraid of mere mortals?