Horatius Bonar explores the theme of shame and the inadequacy of human attempts to cover sin, as illustrated by Adam and Eve's use of fig leaves. He emphasizes that while they sought to hide their nakedness and guilt, their self-made coverings were insufficient before God. Bonar argues that true atonement requires divine intervention, as human efforts are merely fig-leaves that cannot address the depths of sin. He warns against relying on rituals or good deeds as means of approaching God, highlighting that only through the sacrifice of Christ can true shame be covered. Ultimately, Bonar calls for recognition of God's provision for sin rather than reliance on our own devices.