Scholars unanimously agree that a person who insults or mocks religion [Islam] is a disbeliever. The Maaliki scholar Al-Qaadhi ‘Iyaadh reported a scholars’ consensus that any person who belittles or insults the Quran or the Mus'haf (printed Quran) or anything in it is a disbeliever.

Similarly, a person who swears by any of the distorted Gospels, out of respecting them or believing that their contents are true, is a disbeliever according to the unanimous agreement of scholars. This is because by doing so the person renders the Quran false, since it attests that they are distorted and false.

The Companions unanimously agreed that a person who totally stops performing prayer is a disbeliever as well. ‘Abdullaah Ibn Shaqeeq narrated that the Companions did not count the stopping of any act of worship an act of disbelief except the abandonment of prayer. [At-Tirmithi]  Anyone who performs prayer occasionally or combines two prayers without a valid reason, as your husband does, is actually in great danger even though he is not judged as a disbeliever.

In conclusion, your husband is a disbeliever and an apostate whom you are not permitted to stay married to unless he repents and returns to Islam. File your case in court and it will bring about your separation from him.

Allaah Knows best.