'What is it, then, to be pure in heart?'
I answer, It is not necessary to define this purity, or to have in the mind any clear form of it. For even to know perfectly, were that possible, what purity of heart is, would not be to be pure in heart.
'How then am I to try after it? can I do so without knowing what it is?'
Though you do not know any definition of purity, you know enough to begin to be pure. You do not know what a man is, but you know how to make his acquaintance—perhaps even how to gain his friendship. Your brain does not know what purity is; your heart has some acquaintance with purity itself. Your brain in seeking to know what it is, may even obstruct your heart in bettering its friendship with it. To know what purity is, a man must already be pure; but he who can put the question, already knows enough of purity, I repeat, to begin to become pure. If this moment you determine to start for purity, your conscience will at once tell you where to begin. If you reply, 'My conscience says nothing definite'; I answer, 'You are but playing with your conscience. Determine, and it will speak.'
If you care to see God, be pure. If you will not be pure, you will grow more and more impure; and instead of seeing God, will at length find yourself face to face with a vast inane—a vast inane, yet filled full of one inhabitant, that devouring monster, your own false self. If for this neither do you care, I tell you there is a Power that will not have it so; a Love that will make you care by the consequences of not caring.
You who seek purity, and would have your fellow-men also seek it, spend not your labour on the stony ground of their intellect, endeavouring to explain what purity is; give their imagination the one pure man; call up their conscience to witness against their own deeds; urge upon them the grand resolve to be pure. With the first endeavour of a soul toward her, Purity will begin to draw nigh, calling for admittance; and never will a man have to pause in the divine toil, asking what next is required of him; the demands of the indwelling Purity will ever be in front of his slow-labouring obedience.
If one should say, 'Alas, I am shut out from this blessing! I am not pure in heart: never shall I see God!' here is another word from the same eternal heart to comfort him, making his grief its own consolation. For this man also there is blessing with the messenger of the Father. Unhappy men were we, if God were the God of the perfected only, and not of the growing, the becoming! 'Blessed are they,' says the Lord, concerning the not yet pure, 'which do hunger and thirst after righteousness, for they shall be filled.' Filled with righteousness, they are pure; pure, they shall see God.
Long ere the Lord appeared, ever since man was on the earth, nay, surely, from the very beginning, was his spirit at work in it for righteousness; in the fullness of time he came in his own human person, to fulfil all righteousness. He came to his own of the same mind with himself, who hungered and thirsted after righteousness. They should be fulfilled of righteousness!
To hunger and thirst after anything, implies a sore personal need, a strong desire, a passion for that thing. Those that hunger and thirst after righteousness, seek with their whole nature the design of that nature. Nothing less will give them satisfaction; that alone will set them at ease. They long to be delivered from their sins, to send them away, to be clean and blessed by their absence—in a word to become men, God's men; for, sin gone, all the rest is good. It was not in such hearts, it was not in any heart that the revolting legal fiction of imputed righteousness arose. Righteousness itself, God's righteousness, rightness in their own being, in heart and brain and hands, is what they desire. Of such men was Nathanael, in whom was no guile; such, perhaps, was Nicodemus too, although he did come to Jesus by night; such was Zacchaeus. The temple could do nothing to deliver them; but, by their very futility, its observances had done their work, developing the desires they could not meet, making the men hunger and thirst the more after genuine righteousness: the Lord must bring them this bread from heaven. With him, the live, original rightness, in their hearts, they must speedily become righteous. With that Love their friend, who is at once both the root and the flower of things, they would strive vigorously as well as hunger eagerly after righteousness. Love is the father of righteousness. It could not be, and could not be hungered after, but for love. The lord of righteousness himself could not live without Love, without the Father in him. Every heart was created for, and can live no otherwise than in and upon love eternal, perfect, pure, unchanging; and love necessitates righteousness. In how many souls has not the very thought of a real God waked a longing to be different, to be pure, to be right! The fact that this feeling is possible, that a soul can become dissatisfied with itself, and desire a change in itself, reveals God as an essential part of its being; for in itself the soul is aware that it cannot be what it would, what it ought—that it cannot set itself right: a need has been generated in the soul for which the soul can generate no supply; a presence higher than itself must have caused that need; a power greater than itself must supply it, for the soul knows its very need, its very lack, is of something greater than itself.
But the primal need of the human soul is yet greater than this; the longing after righteousness is only one of the manifestations of it; the need itself is that of existence not self-existent for the consciousness of the presence of the causing Self-existent. It is the man's need of God. A moral, that is, a human, a spiritual being, must either be God, or one with God. This truth begins to reveal itself when the man begins to feel that he cannot cast out the thing he hates, cannot be the thing he loves. That he hates thus, that he loves thus, is because God is in him, but he finds he has not enough of God. His awaking strength manifests itself in his sense of weakness, for only strength can know itself weak. The negative cannot know itself at all. Weakness cannot know itself weak. It is a little strength that longs for more; it is infant righteousness that hungers after righteousness.