Yes.
Jesus thinks that if he tells people the truth, they should believe it.
Paul points out that if you think you’re something when you’re not, you’re deceiving yourself. And he presumably thinks that would be a bad thing, or else what would be the point of mentioning it?
Paul also says that people who don’t believe the truth will be condemned, and that people can be saved through belief in the truth.
And he advises Timothy to turn away from ideas that are falsely called knowledge.