Bhagavad Gita Verse 9.23

हे अर्जुन ! यद्यपि श्रद्धासे युक्त जो सकाम भक्त दूसरे देवताओंको पूजते हैं, वे भी मुझको ही पूजते हैं; किन्तु उनका वह पूजन अविधिपूर्वक अर्थात् अज्ञानपूर्वक है|

Arjuna, all of those devotees of mine who perform Attached Karma and who have faith in the various Deities (who are all part of and representatives of Me in reality), actually worship Me. However, this worship is really being done out ignorance, (lack of proper knowledge about Me.)