Romans 1:21 - Exposition

Because that, knowing God, they glorified him not as God, neither were thankful (rather, gave thanks ) ; but became vain in their imaginations ( διαλογισμοῖς , elsewhere more correctly rendered "thoughts" or "reasonings;" cf. 1 Corinthians 3:20 , "The Lord knoweth the thoughts of the wise, that they are vain" — μάταιοι , as here, ἐματαιώθησαν ), and their foolish heart was darkened.