Omen is the fourth studio album by the Norwegian Christian extreme metal band Antestor, released by Bombworks Records on November 16, 2012.

The album cover is a painting by Polish artist Zdzisław Beksiński, and depicts a deformed, many-fingered humanoid creature playing a trumpet.

Antestor was founded in 1990 by Lars Stokstad, Kjetil Molnes, Øyvind Hope and Erling Jørgensen, under the name Crush Evil.

After recording two demos and undergoing a lineup change which left Stokstad and Molnes as sole founding members, the band renamed itself as Antestor in 1993.

[1] Shunned by the early Norwegian black metal scene due to the band members' staunch Christian faith, Antestor struggled retaining a record deal.

[4] Several new members joined the band in 2010: Thor Georg Buer on bass, Jo Henning Børven on drums, Robert Bordevik on guitar, and Nickolas Main Henriksen on keyboard.

[11] During recording, bassist Thor Georg Buer left Antestor in May 2011 due to commitments to his other band, Grave Declaration, and Aanonsen was recruited as his replacement.

[18] Scott Waters, writing for HM, described the album as "progressive, post-black/extreme metal that paints a dark, sullen landscape with lyrics that offer hope.

"Treacherous Domain" contains slow, doom-inspired riffing,[18][21][22] while "In Solitude," "The Kindling," and "Benighted" feature a more progressive, technical style of black metal.

[19][21][22] Synn described "Remnants" as developing "a harsh, angular pounding rhythm that would sit well on any Gorgoroth album"; "Tilflukt" as similar to the output of Windir, and "Mørket's Grøde" as containing echoes of early Satyricon.

I think almost everyone can relate to parts of our music and lyrics, for absolutely everyone – Christians and non-believers alike – experience hard and terrible times.

[27][28][29][30] On January 30, 2013, after Antestor's completion of its Brazilian tour, it announced that its keyboardist, Nickolas Main Henriksen, had left the group for health reasons, but that no replacement would be recruited.

Seven venues were scheduled - Jundiaí, São Paulo, Curitiba, Belém, Vitória, Belo Horizonte, and Rio de Janeiro.

[34] While Antestor was playing at Belo Horizonte, the venue was mobbed by Satanist black metal fans who protested against the band members' Christian beliefs.

[35][36][37] At Belo Horizonte, approximately one hundred protestors gathered outside the venue, holding up banners, shouting "fuck Antestor!

[37] As the protestors tried to tear down the door, the band waited for police to arrive, and then were escorted outside by two officers who were armed and wearing bulletproof vests.

[35][37] The police fired warning shots and formed a defensive ring, allowing the band to escape in a waiting taxi.

[35][37] Aanonsen, the bassist and a father of three, explained that while he understood that the tour could have ended in death for him and the other band members, when violence finally broke out a Belo Horizonte he remained completely, unexpectedly calm.

[20] Andy Synn of No Clean Singing, after a lengthy, track-by-track review, concluded that "It's clear that Antestor have poured their all into this record, physically and emotionally, learning from their past successes and failures, in order to craft an album of impressive depth and detail, with a volcanic core of molten metal passion.

[40] Stecka noted, however, that the guitar solos were not that impressive, and at times sounded as though they were forced, recorded only because the band felt obligated to do so.