Therefore, have no doubt concerning the deities they worship, for they blindly imitate the worship of those deities whom their forefathers used to worship before them; and surely, We shall give them their share of punishment in full without any abatement.
Meaning:-
Deities: God; Supreme Being, like a god or goddess, Fake God.
Imitate: to follow as a pattern, model, or example.
Abatement: the ending, reduction, or lessening of something.