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

Imam's historic letter displays deep trust in young Nasrallah

Late Sayyed Hassan Nasrallah was a twenty-one-year-old youth when he was found on the merit to collect or receive religious dues from Imam Khomeini and spend him for the well being of needy faithful and believers.

Hezbollah confirms assassination of leader Sayyed Hassan Nasrallah in Israeli strike on Beirut

The Lebanese Hezbollah resistance movement has confirmed the assassination of its secretary general Sayyed Hassan Nasrallah in massive Israeli airstrikes targeting residential buildings in southern Beirut on Friday.

Leader: Final victory in current battle is for resistance front

Imam Khomeini's Strategic Management in the Imposed War.

Imam Khomeini's management characteristics are based on his personal and organizational behavior and Islamic values. The results indicated that Imam Khomeini's leadership and management model in the imposed War was a combination model based on three levels of the individual (personality), behavior, and society's needs.

Imam Khomeini had very strong reliance on God Almighty

if knowledge is not accompanied with purity of the soul, it will bring disaster, Imam Khomeini ...

Imam Khomeini through his theological works pointed out that even the knowledge of the divine unity [‘ilm al-tawhid] if it is not accompanied with purity of the soul, it will bring disaster.

All Islamic denominations refer to divine savior as al- Mahdi ( May God hasten his reappearance )

All Ibrahimi religions believe in an end-times savior. All Ibrahimi religions believe that someone will emerge who will save the world from the morass of oppression and cruelty. In Islam, the name of this savior has been mentioned.