Can you cite the quote through which Imam called himself as a servant to the nation?

With love of self, you cannot mount any resistance, Imam Khomeini explained

Imam Khomeini through his theological works underscores that with love of self and position, with arrogance and pride, you cannot mount any resistance.

Haj Qassem Soleimani was a hero of peace

Imam advised Muslims to sacrifice themselves for Islam

According to Imam Khomeini, from this moment on, develop and raise this point in your heart, that I must be an armed soldier of Islam, and sacrifice myself for Islam.

Thousands of Iranians in Mashhad attend funeral for martyrs killed in riots

People in the northeastern Iranian city of Mashhad have attended the funeral procession of two members of Basij volunteer forces and a soldier, who were killed by rioters days earlier.

Imam Khomeini: Now it is the duty of all of us to be the guardians of Islam, to be the soldiers of ...

Sahifeh-ye-Imam. V 7, P 258

Imam kissed forehead of a volunteer soldier

Imam advised young people to attach value to their youth and worship God

A memoirs by Ayatollah Tawasulli