Tom Jones has rejected claims that his song Delilah “trivialises” violence against women, arguing that critics shouldn’t be taking the 46-year-old song so “literally”.

Jones’ comments come as Dafydd Iwan, former president of the Welsh nationalist paty Plaid Cymru, called for Welsh rugby supporters to stop singing Delilah at matches. Jones’ 1968 hit tells the story of a man who attacks the woman who cheated on him. “Forgive me Delilah I just couldn’t take any more,” he sings. “I felt the knife in my hand and she laughed no more.”

“It’s not a political statement,” Jones told the BBC on Thursday. “This woman us unfaithful to him and [the narrator] just loses it … It’s something that happens in life.”

Iwan, who is also a folk singer, recently asserted that Delilah “trivialise[s] the idea of murdering a woman”.

“It’s a pity these words now have been elevated to the status of a secondary national anthem,” he said. “I think we should rummage around for another song instead of Delilah.”

Delilah has long been part of the repertoire of the Welsh Rugby Union and supporters of the Premier League football club Stoke. “I love to hear it being sung at Welsh games,” Jones said. “It makes me very proud to be Welsh that they’re using one of my songs.” He claims that “the great thing about the song” is its chorus, “Why, why, why Delilah”. “I don’t think [singers] are really thinking about it … If it’s going to be taken literally, I think it takes the fun out of it.”

Thus far, the Welsh Rugby Union has shrugged off Iwan’s call for a Delilah ban. “[The Union] condemns violence against women and has taken a lead role in police campaigns to highlight and combat the issue,” a spokesman told the South Wales Evening Post. “[We are] willing to listen to any strong public debate on the issue of censoring the use of Delilah but we have not been aware of any groundswell of opinion on this matter.”