Unto vile passions (ei paqh atimia). Unto passions of dishonour. Paqo, old word from pascw, to experience, originally meant any feeling whether good or bad, but in N.T. always in bad sense as here, 1 Thessalonians 4:5 ; Colossians 3:5 (only N.T. examples). That which is against nature (thn para pusin). The degradation of sex is what Paul here notes as one of the results of heathenism (the loss of God in the life of man). They passed by the Creator.