New Israeli draft laws allow a doctor to abandon their professional oath to treat any patient and gives them the right to refuse to treat on religious grounds.
Opposition lawmakers said the new laws were an abandonment of values for Israel.
Outgoing Prime Minister Yair Lapid described them as the most extensive moral deterioration that could lead Israel to become a dark state.
Lapid blamed new Prime Minister Benjamin Netanyahu for the rise of such sentiments, saying he was "leading us to a benighted state [ruled by] Jewish law."
Hundreds of citizens marched in Haifa, protesting the new draft laws, which also say doctors should have the right not to treat homosexuals if it is against their religious belief and if another doctor is on hand to see them.
Most of the protesters were primarily concerned with the issue of homosexuals. Still, many, including former generals in the army and intelligence, supported Arab demonstrators who opposed the law.
Another clause in the law allows the separation of males and females in wedding halls and grants hall owners the authority to bar homosexuals from entering.
The law also allows Jews to buy land plots at low prices in the Negev and Galilee with the aim of Judaizing them. Authorities would allow Israeli forces to clamp down on Arabs.
New regulations also support education in Jewish towns by including them in the nationally preferred areas, according to which they will be granted tax concessions, excluding Arab cities in Galilee and the Negev.
Netanyahu's Itamar Ben-Gvir defended the provisions, saying it was good to have a law that allows freedom, adding that the left talks about democracy but acts like a dictatorship.
Labor MP Gilad Kariv said Israel must decide whether to be a society that respects all people or one that discriminates between them under pretenses, asserting that the law would be used to discriminate against minorities, such as Arabs and Haredi.
A poll published by the Israeli Kan showed that 48 percent of Israeli citizens believe the situation in the country would be worse by the end of Netanyahu’s term in office in four years.
Only 29 percent of the respondents said Israel's status would improve, while 38 percent rejected expanding Ben-Gvir's powers and 36 percent supported it.
Nearly half of the respondents were dissatisfied with the composition of the new government coalition, compared to 37 percent who did.