Thomas Boston, Works, 5:364:
God alone is the centre of true unity, and where men are broke off from God, they will be found at the bottom broke off from one another, as altogether selfish, and having their unruly passions unmortified, which make them uneasy both to themselves and others. And hence faith in Christ is the early restorer of true peace and love among men. That peace and love that is between companions in sin, will without peradventure break out in rage and hatred.
God alone is the centre of true unity, and where men are broke off from God, they will be found at the bottom broke off from one another, as altogether selfish, and having their unruly passions unmortified, which make them uneasy both to themselves and others. And hence faith in Christ is the early restorer of true peace and love among men. That peace and love that is between companions in sin, will without peradventure break out in rage and hatred.