Simplicity of heart is wedded with humility, the queen of virtues, because humility inclines the heart towards grace and truth. Just as pride is the root of every sin and evil we can conceive, so humility is the only soil in which the grace of God can take root. It alone takes the right attitude before God and allows him as God to do all. “God opposes the proud, but gives grace to the humble” (Prov. 3:34, James 4:6).
– Don Schwager