But if we look carefully at Luke's words, we see that what filled the house was not agitated air, or wind, but 'a sound as of wind.' The language implies that there was no rush of atmosphere that lifted a hair on any cheek, or blew on any face, but only such a sound as is made by tempest. It suggested wind, but it was not wind. By that first symbolic preparation for the communication of the promised gift, the old symbolism which lies in the very word 'Spirit,' and had been brought anew to the disciples' remembrance by Christ's words to Nicodemus, and by His breathing on them when He gave them an anticipatory and partial bestowment of the Spirit, is brought to view, with its associations of life-giving power and liberty. 'Thou hearest the sound thereof,' could scarcely fail to be remembered by some in that chamber.
But it is not to be supposed that the audible symbol continued when the second preparatory one, addressed to the eye, appeared. As the former had been not wind, but like it, the latter was not fire, but 'as of fire.' The language does not answer the question whether what was seen was a mass from which the tongues detached themselves, or whether only the separate tongues were visible as they moved overhead. But the final result was that 'it sat on each.' The verb has no expressed subject, and 'fire' cannot be the subject, for it is only introduced as a comparison. Probably, therefore, we are to understand 'a tongue' as the unexpressed subject of the verb.
Clearly, the point of the symbol is the same as that presented in the Baptist's promise of a baptism 'with the Holy Ghost and fire.' The Spirit was to be in them as a Spirit of burning, thawing natural coldness and melting hearts with a genial warmth, which should beget flaming enthusiasm, fervent love, burning zeal, and should work transformation into its own fiery substance. The rejoicing power, the quick energy, the consuming force, the assimilating action of fire, are all included in the symbol, and should all be possessed by Christ's disciples.
But were the tongue-like shapes of the flames significant too? It is doubtful, for, natural as is the supposition that they were, it is to be remembered that 'tongues of fire' is a usual expression, and may mean nothing more than the flickering shoots of flame into which a fire necessarily parts.
But these two symbols are only symbols. The true fulfilment of the great promise follows. Mark the brief simplicity of the quiet words in which the greatest bestowment ever made on humanity, the beginning of an altogether new era, the equipment of the Church for her age-long conflict, is told. There was an actual impartation to men of a divine life, to dwell in them and actuate them; to bring all good to victory in them; to illuminate, sustain, direct, and elevate; to cleanse and quicken. The gift was complete. They were 'filled.' No doubt they had much more to receive, and they received it, as their natures became, by faithful obedience to the indwelling Spirit, capable of more. But up to the measure of their then capacities they were filled; and, since their spirits were expansible, and the gift was infinite, they were in a position to grow steadily in possession of it, till they were 'filled with all the fulness of God.'
Further, 'they were _all_ filled,'--not the Apostles only, but the whole hundred and twenty. Peter's quotation from Joel distinctly implies the universality of the gift, which the 'servants and handmaidens,' the brethren and the women, now received. Herein is the true democracy of Christianity. There are still diversities of operations and degrees of possession, but all Christians have the Spirit. All 'they that believe on Him,' and only they, have received it. Of old the light shone only on the highest peaks,--prophets, and kings, and psalmists; now the lowest depths of the valleys are flooded with it. Would that Christians generally believed more fully in, and set more store by, that great gift!