What about the novelization? The books tend to include scripted, but unfilmed scenes in addition to cut scenes.
From the novelization:
Sarek of Vulcan stepped from the transporter center into the cool, damp brightness of earth. He could have beamed directly to Federation headquarters, but he preferred to make his way on foot. On any world where conditions permitted, he chose to walk in the open air and on the open ground. In this way he could make himself familiar with a new environment. This was something Amanda had taught him. He often wondered why Vulcans did not habitually do the same thing, for it was quite logical.
Sarek had expected never to return to diplomatic service after his retirement. He had never expected to visit earth again. But now, two journeys in three months disarranged his contemplative existence. He had made his first voyage to accuse James Kirk. He made this voyage to defend him.
The planetary government of Vulcan had come perilously close to forbidding the second voyage. Sarek had to delve deep into his reserves of logic and persuasion to win their agreement. Many members of the government claimed no interest in James Kirk’s fate; they offered Sarek the hypothesis that since Kirk had neutralized a series of events that he himself had begun, a balance had been reached. Kirk must face the consequences of his actions alone. If Vulcans acted, the balance would be destroyed.
Perhaps, Sarek thought, the charge Representative T’Pring made is correct. Perhaps I have spent too much time on earth. I have certainly, in the eyes of other Vulcans, spent too much time in the company of human beings, or at any rate in the company of one human being. Yet I cannot imagine following any other path for my life, and, at the end of our debate, even the flawlessly logical sword-edged blade of T’Pring’s mind finally turned to my persuasion. She argued on my behalf.
As he walked, he reaccustomed himself to earth’s low gravity and weather conditions. Fog, gathering beneath the catenaries of the Golden Gate Bridge, crept through the streets and flowed around the hills. Sarek drew his cloak around him, marring the fine pattern of condensation that collected on the heavy fabric.
Sarek arrived at Federation headquarters moments before he was scheduled to speak. In the foyer, Commander Christine Chapel hurried to meet him.
“Sarek, thank you for coming.”
“I left Vulcan as soon as I was able after your message arrived. Do the findings of the inquiry still go against James Kirk and his shipmates?”
“It isn’t going well for him. For any of them.” She sounded worried. “He’s made a lot of friends in his career. But a lot of enemies as well. There are people—outside the Federation, and in it too—who would like to see him brought down.”
“But he saved Spock’s life, and the life of Lieutenant Saavik,” Sarek said. “Furthermore, he acted on my behalf and at my request. It is preposterous that he should be punished.”
“Sir,” Chapel said, “you’ve made enemies too.”
“It is illogical,” Sarek said. “But it is true.”
“Mr. Ambassador, has Spock recovered?”
“He is recovering. However, the experience is not without effect. He has undergone changes, but he is Spock.”
“I’m glad,” she said.
Sarek followed Chapel into the surprising darkness of the council chamber.
