NET

5 His people have been unfaithful to him; they have not acted like his children—this is their sin. They are a perverse and deceitful generation.

Darby

5 They have dealt corruptly with him; Not his children's is their spot^D1374: A crooked and perverted generation!

Darby Bible Notes

spot - Or 'blemish,' as Cant. 4.7; Dan. 1.4.

KJV

5 They have corrupted themselves^K905, their spot [is] not [the spot] of his children: [they are] a perverse and crooked generation.

KJV Bible Notes

They have corrupted themselves: Heb. he hath corrupted to himself. their spot is not the spot of his children: Or, that they are not his children, that is their blot.