from From Fear to Freedom, by Rose Marie Miller

Faith alone links life to God and his abundant, fatherly grace. If this communication line is cut, the soul wanders alone, orphanlike.

from From Fear to Freedom by Rose Marie Miller

Presumptive self-confidence may look like faith, but it has a very different spiritual root (Jer 17:5-10). Faith and presumption look alike because both qualities are characterized by confidence, but faith begins in the recognition and acceptance of our total human weakness. It relies solely on God and his gracious willingness to empower us.
Presumption, on the other hand, is a reliance on human moral abilities and religious accomplishments, on visible securities. It ultimately relies on human will power ....