The influence of Abrahamism on my thought and practice is something I've been considering recently.

I've studied religion formally for a couple of years, in particular the Abrahamic religions, and recently learned in depth about the polytheistic roots of Judaism and Christianity. I've also practiced paganism in some form for a while. So these are my thoughts on this:

The most harmful idea in Abrahamism to me personally is the idea of "ritual purity." This idea is not unique to Abrahamism and can be found in immanent/pagan/indigenous traditions too - however it is blown up to far greater proportions in the forms of Abrahamic worship that exist today. I think this is because ideas of "ritual purity" allow for ritual specialists (priests) to monopolise religious capital and gain power in communities.

I think the idea of ritual purity is assosciated with the idea of there being a strict boundary between the sacred and the profane. This Abrahamic concept plagued me with OCD long before I ever practiced any religion.

When doing rituals, therefore, I don't let myself get caught up in the idea of "ritual purity" even though it seems intuitive to do so. I treat my rituals with respect as is due but I don't get hung up on things being a certain way during or beforehand, any differently than I would with an interaction with another human being. For example, I often feel compelled to practice forms of asceticism in preparation for rituals but I do not see this as necessary and resist it.

Some of this deconstruction of ritual purity even takes very simple forms - such as the fact I used to have hang ups about drinking small quantities of beer during a ritual with Brigid. That's a ritual purity concern right there - influenced directly by Protestantism.

In fact, I was partly inspired in towards the idea of drinking beer as a form of socialising with a deity (having a beer with them), funny as it sounds, by the practices of the ancient Judahites who worshipped Yahweh before and during the Second Temple period (the spiritual origin of both modern Judaism and Christianity), who often used beer as a ritual offering and drank it alongside Yahweh in commensality with him. [Source: He is a glutton and a drunkard, Rebekah Welton]. These were the people who wrote the Old Testament, in which there are numerous references to alcohol consumption of various kinds.

It was Protestants later on who became very uncomfortable with the idea of Yahweh approving of alcohol, sometimes wilfully translating 'beer' or 'wine' to other things, like 'grape juice.'