“The deceitfulness of the heart of man appears in no one thing so much as this of spiritual pride and self-righteousness. The subtlety of Satan appears in its height, in his managing persons with respect to this sin. And perhaps one reason may be that here he has most experience; he knows the way of its coming in; he is acquainted with the secret springs of it: it was his own sin. Experience gives vast advantage in leading souls, either in good or evil.”

“Spiritual pride tends to speak of other persons’ sins with bitterness or with laughter and levity and an air of contempt. But pure Christian humility rather tends either to be silent about these problems or to speak of them with grief and pity. Spiritual pride is very apt to suspect others, but a humble Christian is most guarded about himself. He is as suspicious of nothing in the world as he is of his own heart. The proud person is apt to find fault with other believers, that they are low in grace, and to be much in observing how cold and dead they are and to be quick to note their deficiencies. But the humble Christian has so much to do at home and sees so much evil in his own heart and is so concerned about it that he is not apt to be very busy with other hearts. He is apt to esteem others better than himself.”

“It is experience of ourselves, and finding what we are, that God commonly makes use of as the means of bringing us off from all dependence on ourselves. But men never get acquaintance with themselves so fast, as in the most earnest way of seeking [salvation]. They that are in this way have more to engage them to think of their sins, and strictly to observe themselves, and have much more to do with their own hearts, than others. Such a one has much more experience of his own weakness, than another that does not put forth and try his strength; and will therefore sooner see himself dead in sin. Such a one, though he hath a disposition continually to be flying to his own righteousness, yet finds rest in nothing; he wanders about from one thing to another, seeking something to ease his disquieted conscience; he is driven from one refuge to another, goes from mountain to hill, seeking rest and finding none; and therefore will the sooner prove that there is no rest to be found, nor trust to be put, in any creature whatsoever."It is therefore quite a wrong notion that some entertain, that the more they do, the more they shall depend on it. Whereas the reverse is true; the more they do, or the more thorough they are in seeking, the less will they be likely to rest in their doings, and the sooner will they see the vanity of all that they do.[from "Pressing into the Kingdom of God"]”

“But that is the nature of true grace and spiritual light, that it opens to a person's view the infinite reason there is that he should be holy in a high degree. And the more grace he has, and the more this is opened to view, the greater sense he has of the infinite excellency and glory of the divine Being, and of the infinite dignity of the person of Christ, and the boundless length and breadth and depth and height of the love of Christ to sinners. And as grace increases, the field opens more and more to a distant view, until the soul is swallowed up with the vastness of the object, and the person is astonished to think how much it becomes him to love this God and this glorious Redeemer that has so loved man, and how little he does love. And so the more he apprehends, the more the smallness of his grace and love appears strange and wonderful: and therefore he is more ready to think that others are beyond him.”

“So that it must be only by the imagination that Satan has access to the soul, to tempt and delude it, or suggest anything to it. And this seems to be the reason why persons that are under the disease of melancholy are commonly so visibly and remarkably subject to the suggestions and temptations of Satan... Innumerable are the ways by which the mind may be led on to all kind of evil thoughts, by the exciting of external ideas in the imagination.”

“True Christian fortitude consists in strength of mind, through grace, exerted in two things; in ruling and suppressing the evil and unruly passions and affections of the mind; and in steadfastly and freely exerting and following good affections and dispositions, without being hindered by sinful fear or the opposition of enemies... Though Christian fortitude appears in withstanding and counteracting the enemies that are without us; yet it much more appears in resisting and suppressing the enemies that are within us; because they are our worst and strongest enemies and have greatest advantage against us. The strength of the good soldier of Jesus Christ appears in nothing more than in steadfastly maintaining the holy calm, meekness, sweetness, and benevolence of his mind, amidst all the storms, injuries, strange behaviour, and surprising acts and events of this evil and unreasonable world.”

“When God is here spoken of as hardening some of the children of men, it is not to be understood that God by any positive efficiency hardens any man's heart. There is no positive act in God, as though he put forth any power to harden the heart. To suppose any such thing would be to make God the immediate author of sin. God is said to harden men in two ways: by withholding the powerful influences of his Spirit, without which their hearts will remain hardened, and grow harder and harder; in this sense he hardens them, as he leaves them to hardness. And again, by ordering those things in his providence which, through the abuse of their corruption, become the occasion of their hardening. Thus God sends his word and ordinances to men which, by their abuse, prove an occasion of their hardening.”