Vaishnava Samhita. Karmatha Devi Charitam. Vol II Book VI Chp 5 Shloka 7

एवं विश्वास युक्तानां भजतां दृढनिष्ठया
योगक्षेमं वहत्येष भक्तकोलाहलः प्रभुः ||

The Lord, the Bhaktvatsala, takes care of the welfare of those bhaktas who engage in bhajan with unflinching devotion.