Charles H. Spurgeon on Psalms 29:11

Peace. There is a threefold "peace, "externa, interna, aeterna; temporal, spiritual, celestial peace. There is outward peace, the blessing; inward peace, the grace; and everlasting peace, of glory. And as in a stately palace there is a lodge or court that leads into the inmost goodly rooms, so external peace is the entrance or introduction to the inward lodgings of the sweet peace of conscience and of that external rest in which our peace in heaven shall be happy, inasmuch as external peace affords us many accommodations and helps to the gaining and obtaining both the one and the other. Ephraim Udall, 1642.