Thematic Bible: Exact in minor, but neglecting important duties

Woe unto you, scribes and Pharisees, hypocrites! for ye tithe mint and anise and cummin, and have left undone the weightier matters of the law, justice, and mercy, and faith: but these ye ought to have done, and not to have left the other undone. Ye blind guides, that strain out the gnat, and swallow the camel!