Perhaps the OP means the fourth shabad of Rehras Sahib:
Raag Goojaree, Fourth Mehl:
O humble servant of the Lord, O True Guru, O True Primal Being: I offer my humble prayer to You, O Guru.
I am a mere insect, a worm. O True Guru, I seek Your Sanctuary. Please be merciful, and bless me with the Light of the Naam, the Name of the Lord. ||1||
O my Best Friend, O Divine Guru, please enlighten me with the Name of the Lord.
Through the Guru's Teachings, the Naam is my breath of life. The Kirtan of the Lord's Praise is my life's occupation. ||1||Pause||
The servants of the Lord have the greatest good fortune; they have faith in the Lord, and a longing for the Lord.
Obtaining the Name of the Lord, Har, Har, they are satisfied; joining the Sangat, the Blessed Congregation, their virtues shine forth. ||2||
Those who have not obtained the Sublime Essence of the Name of the Lord, Har, Har, Har, are most unfortunate; they are led away by the Messenger of Death.
Those who have not sought the Sanctuary of the True Guru and the Sangat, the Holy Congregation; cursed are their lives, and cursed are their hopes of life. ||3||
Those humble servants of the Lord who have attained the Company of the True Guru, have such pre-ordained destiny inscribed on their foreheads.
Blessed, blessed is the Sat Sangat, the True Congregation, where the Lord's Essence is obtained. Meeting with His humble servant, O Nanak, the Light of the Naam shines forth. ||4||4||
And part of Rehras is Benti Chaupai, which is here
http://www.sikhiwiki.org/index.php/Chaupai_sahib:_Translation_and_Transliteration, and says this:
The fools consider Him a stone, for He does not know the Profound Mystery that is God. He calls Shiva, The Eternal Lord, and does not know the secret of the Formless Lord. (16)