Indicative of insincerity and hypocrisy. God requires wholeheartedness and sincerity from all people, both in their dealings with others and in their worship of him.
Double-mindedness is characteristic of sinners
Double-mindedness in dealings with other people
Double-mindedness in daily life
Double-mindedness in worship
Lack of faith in prayer is equated with double-mindedness
God requires wholeheartedness and sincerity