these were the exact word he said in lifestream: black cause as long as cloud never forgets seph , he will always return , seph in ff7 in life attained godhood and in death attained immortality by becoming a living concept im not kidding here as long as someone remembers he lives
"I will not end, nor will I have you end"
"Cloud, lend me your strength. Let's defy destiny, together"
Friendly reminder Sephiroth only said those words to Cloud.
Sephiroth in this scene was also specifically noted to use "Ore" the same pronoun he used BEFORE Jenova.