Vaishnava Samhita. Sakshi Gopala Charitam. Vol III Book VI Chp 23 Shlokas 3 - 5

अवलम्ब्य दृढश्रद्धामीश्वरे सर्वसाक्षिणि |
आचरेद्वैष्णवो भक्तो धर्ममीश्वरसंमतम् ||
सत्यसन्धस्य भक्तस्य दृढनिष्ठस्य सन्मतेः |
ऋजुबुद्धेः कृपासिन्धुः साक्षी भवति सन्ततम् ||   
तमेव परमात्मानं सर्वसाक्षिणमीश्वरम् |
आश्रित्य भक्तवर्यस्तु सुखं जीवति निर्भरः || 

A bhakta should carry on his duties with unshakable faith in the Lord who is the never-failing witness to everything. The Lord Bhagavan approves of his actions fully and presents Himself as a witness for the sake of a true devotee endowed with unswerving faith, honesty and purity of heart. Relying on the Absolute Being, the Supreme Witness, the bhakta leads a life bereft of cares and worries.