Guru Gobind Singh has given every sacrifice possible to the Khalsa Panth, his family, his wealth, his smalls sons, his horses, his swords, and Guns. He gave all of it so the Khalsa could be free. His every Ardas to Akal Purukh was for the Khalsa Panth:
ਠਾਢ ਭਯੋ ਮੈ ਜੋਰਿ ਕਰ ਬਚਨ ਕਹਾ ਸਿਰ ਨਿਆਇ ॥ठाढ भयो मै जोरि कर बचन कहा सिर निआइ ॥I stood up with folded hands and bowing down my head, I said:ਪੰਥ ਚਲੈ ਤਬ ਜਗਤ ਮੈ ਜਬ ਤੁਮ ਕਰਹੁ ਸਹਾਇ ॥੩੦॥पंथ चलै तब जगत मै जब तुम करहु सहाइ ॥३०॥The path (Panth) shall prevail only in the world, with THY ASSISTANCE."30.
He made every Singh into a Prince, and every Singhnee into a Princess. He gave the Holy throne of Raj Yog to the Guru Khalsa Panth Sahib Ji and Guru Granth Sahib Ji. The Guru said:
" The deepest wish of my heart, is that the Khalsa Panth remains, even if I loose everything including my life"
At Chamkaur Sahib the Guru send his two sons into battle, one after the other. He watched them recieve martyrdom. Later the young sons of Guru Ji were executed by the Islamic rulers and priests. The Guru was in the Jungles of Machiwara on his way to Dam Dama Sahib, he recieved a message from the Islamic rulers saying give up now:
"Oh Guru Gobind Singh, you have lost everything. You have lost your throne, your horses, even your Falcon. You have lost your sons, your palaces, and your wealth. In the science of war, this means you have lost. Now give up and surrender. "
At Gurudwara Zafarnama Sahib, Guru Ji sent this reply with Bhai Daya Singh and Dharam Singh in Persian to the wordly Islamic Emperor Aurangzeb:
What happened that you have killed four children (my sons), the coiled snake (in the form of my Khalsa) still remains (to confront you).
What manliness you have shown by extinguishing a few sparks (sahibzadas). You have made the conflagration brighter and more furious.
Baba Zorawar Singh 9 years old, and Baba Fateh Singh 6 years old.
NA SAZ-O NA BAZ-O NA FAUJ-O NA FARSH, KHUDAVAND BAKSHINDEH-E AISH-O ARSH (4)
I (Guru Gobind Singh), have no throne, horse, falcon, or army. However I have the blessings of the Almighty God who is the giver of the pleasures of Heaven. So, I will never give up to tyranny!