²¹ Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.

²¹ because, having known God they did not glorify 'Him' as God, nor gave thanks, but were made vain in their reasonings, and their unintelligent heart was darkened,

²¹ Because, knowing God, they didn’t glorify him as God, neither gave thanks, but became vain in their reasoning, and their senseless heart was darkened.