There [at Śvetadvīpa], Lord Brahmā offered prayers to the Supreme Personality of Godhead, even though he had never seen the Supreme Lord. Simply because Lord Brahmā had heard about the Supreme Personality of Godhead from Vedic literature, with a fixed mind he offered the Lord prayers as written or approved by Vedic literature.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तत्रादृष्टस्वरूपाय श्रुतपूर्वाय वै विभो । स्तुतिमब्रूत दैवीभिर्गीर्भिस्त्ववहितेन्द्रियः
tatrādṛṣṭasvarūpāya śrutapūrvāya vai vibho | stutimabrūta daivībhirgīrbhistvavahitendriyaḥ
SB 8.5.25