The Triune God whom we adore is the Thrice Holy One: the mystery of the Trinity is the mystery of Holiness: the Glory and the Power of the Trinity is the Glory and Power of God who makes us holy. There is God dwelling in light inaccessible, a consuming fire of Holy Love, destroying all that resists, glorifying into its own purity all that yields. There is the Son, casting Himself into that consuming fire, whether in its eternal blessedness in heaven, or its angry wrath on earth, a willing sacrifice, to be its food and its satisfaction, as well as the revelation of its power to destroy and to save. And there is the Spirit of Holiness, the flames of that mighty fire spreading on every side, convicting and judging as the Spirit of Burning, and then transforming into its own brightness and holiness all that it can reach. All the relations of the Three Persons to each other and to us have their root and their meaning in the revelation of God as the Holy One. As we know and partake of Him, we shall know and partake of Holiness.
And how shall we know Him? Let us learn to know the Holiness of God as the seraphs do: in the worship of the Thrice Holy One. Let us with veiled faces join in the ceaseless song of adoration: 'Holy, holy, holy is the Lord of hosts.' Each time we meditate on the Word, each prayer to the Holy God, each act of faith in Christ the Holy One, each exercise of waiting dependence on the Holy Spirit, let it be in the spirit of worship: Holy, holy, holy. Let us learn to know the Holiness of God as Isaiah did. He was to be the chosen messenger to reveal and interpret to the people the name, the Holy One of Israel. His preparation was the vision that made him cry out, 'Woe is me! for mine eyes have seen the King, the Lord of hosts.' Let us bow in silence before the Holy One, until our comeliness too be turned into corruption. And then let us believe in the cleansing fire from the altar, the touch of the live coals of the burning holiness, which not only consumes, but purges lips and heart to say, 'Here am I, send me.' Yes, let us worship, whether like the adoring seraphim, or like the trembling prophet, until we know that our service too is accepted, to tell forth the praise of the Thrice Holy One.
Holy, holy, holy: if we are indeed to be the messengers of the Holy One, let us seek to enter fully into what this Thrice Holy means. HOLY, the Father, _God above us_, High and Lifted up, whom no man hath seen or can see, whose Holiness none dare approach, but who doth Himself in His Holiness draw nigh to make holy. HOLY, the Son, _God with us_, revealing Divine Holiness in human life, maintaining it amid the suffering of death for us, and preparing a holy life and nature for His people. HOLY, the Spirit, _God in us_, the Power of Holiness within us, reaching out to and embracing Christ, and transforming our inner life into the union and communion of Him in whom we are holy. Holy, holy, holy! it is all holiness. It is only holiness--perfect holiness. This is Divine holiness: holiness hidden and unapproachable; holiness manifested and maintained in human nature; holiness communicated and made our very own.
The mystery of the Holy Trinity is the mystery of the Christian life, the mystery of Holiness. The Three are One, and we need to enter ever more deeply into the truth that neither of the Three ever works separate or independent of the other. The Son reveals the Father, and the Father reveals the Son. The Father gives not Himself, but the Spirit: the Spirit speaks not of Himself, but cries Abba Father! The Son is our Sanctification, our Life, our All: the fulness is in Him. And yet we have ever to bow our knees to the Father for Him to reveal Christ in us, for Him to establish us in Christ. And the Father does not this without the Spirit: so that we have to ask to be strengthened mightily by the Spirit, that Christ may dwell in us. Christ gives the Spirit to them that believe and love and obey; the Spirit again gives Christ, formed within and dwelling in the heart. And so in each act of worship, and each step of growth, and each blessed experience of grace, all the Three Persons are actively engaged: the One is ever Three, the Three are ever One.