'Half hearted' in the Bible

[SAMECH] Half-hearted ones, do I hate, but, thy law, do I love.

so that you may not become half-hearted, but be imitators of those who through faith and patient endurance are now heirs to the promises.

Draw near to God, and He will draw near to you. Cleanse your hands, you sinners, and make your hearts pure, you who are half-hearted towards God.