Yes, both 'perish' and 'die' are both verbs.
shall not perish means...won't die.
die
Die, disappear
Yes, indeed it does. Perish is another word of saying 'die'. (Ex. My poor plants perished when I came outside!"
Yes they are both verbs.
Die.
"Shall not perish" typically refers to something that will not cease to exist or be destroyed, indicating longevity or permanence.
die, expire, pass (away)
The opposite could be perish or die.
Yes they are both past tense verbs.
No they both are pronouns.
To be destroyed; to pass away; to become nothing; to be lost; to die; hence, to wither; to waste away., To cause perish.