Isaiah 58:11 ASV

The context of this one is important. The promise is explicit. God will guide you and provide your needs, even to the point of abundance like a well-watered garden. But it's entirely conditional. The condition, interestingly enough, is that you would choose to "spend yourselves in behalf of the hungry and satisfy the needs of the oppressed."

A strong promise. Not universal. But definitely saying that God will act on behalf of those people who are acting in line with His character.

Perhaps in some sense this is what Steven is experiencing now?