They that are of a froward heart are abomination to the LORD: but such as are upright in their way are his delight.
– Proverbs 11:20
The word for froward is common in the Proverbs and means twisted, or perverse. I like to think of it as bent, as in bending away from wisdom. A perverse or twisted heart is abhorrent to God and the line suggests they invite his judgment upon them. By contrast, the upright walk according to wisdom and are his delight. Therefore, they invite his pleasure and blessing upon them (Psalm 18:25-26; 11:7; 140:13).