The enemies of Tawheed might have a lot of knowledge
Sheikh Mohammed bin Abdul Al Wahab may Allah have mercy on him said:
The path to Allah must have enemies sitting upon it, people of eloquence, knowledge and arguments, so it’s obligatory upon you to learn from the religion of Allah what will be a weapon for you, fighting with it those people.
He also said: and
The enemies of Tawheed might have a lot of knowledge,
books and arguments, as have Allah said: And when their messengers came to them with clear proofs, they [merely] rejoiced in what they had of knowledge. 40:83
[الدرر السنيّة في الأجوِبة النجديّة, 1/71]