Men’s extreme blindness manifested by inward experience, and especially in their practices under the gospel.

I come now to show, how this is manifest in those things that are found by inward experience, and are visible in men’s practices under the light of the gospel.

1. This appears in their being so prone to be deceived so many ways, or being liable to such a multiplicity of deceits. There are thousands of delusions in things which concern the affairs of religion, that men commonly are led away with, who yet live under the light of the gospel.—They are many ways deceived about God. They think him to be an exceeding diverse kind of being from what he is; altogether such an one as themselves. 1 They are deceived about his holiness, they do not realize it, that he is such a holy being as he indeed is, or that he hates sin with such a hatred as he declares he does. They are not convinced of his truth, or that he certainly will fulfil his threatenings or his promises. They are not convinced of his justice in punishing sin, as he does. They have very wrong notions of Christ. They are not convinced of his ability to save them, or of the sufficiency of his sacrifice and righteousness; nor of his willingness to receive them.

Men are commonly subject to a great many errors about their duty. They are ready to bring their principles to agree with their practices, instead of bringing their practices to their principles, as they ought to do. They will put innumerable false glosses on the rules of God’s word, to bend them to a compliance with their lusts; and so they ” put darkness for light, and light for darkness; bitter for sweet, and sweet for bitter.”

They are subject to deceits and delusions about the things of this world. They imagine that there is happiness and satisfaction to be found in the profits, pleasures, and honours, which are to be had here. They believe all the deluding flatteries and promises of a vain world. And they will hold that deceit and grand delusion, that these things are the highest good; and will act accordingly; will choose these things for their portion..And they will hold and practise upon that error, that these things are of long continuance, and are to be depended upon.

They are greatly deceived about the things of another world. They undervalue that heavenly glory, which is promised to the saints; and are not much terrified with what they hear of the damnation of hell; they cannot realize it, that its torments are so dreadful as they hear; and are very ready to imagine that they are not eternal, but will some time or other have an end.

They are deceived about the state of good men. They think they are not happy, but live a melancholy life. And they are deceived about the wicked. They envy the state of many of them, as accounting them well off. “They call the proud happy, 2 and bless the covetous, whom God abhors.” 3 And they strive a great deal more after such enjoyments as these have, than after such as are the portion of the godly.

They are subject to a thousand deceits and delusions about themselves. They think themselves wise, when they are fools. They are deceived about their own hearts; they think them much better than they really are. They think they see many good things in themselves, when indeed there is nothing good there. They appear lovely in their own eyes, when their hearts are like the inside of a grave, full of dead men’s bones and rotten flesh, crawling worms, and all uncleanness. Or rather, the inward vault of hell, that is a habitation of devils and every foul spirit. Those things in their hearts are highly esteemed by them, which are an abomination in the sight of God.

Men are very prone to be deceived about their own state; to think themselves something when they are nothing; and to suppose themselves ” rich and increased in goods, and to have need of nothing; when they are wretched, and miserable, and poor, and blind, and naked.” They are greatly deceived about the principles they act from. They think they are sincere in that in which there is no sincerity; and that they do those things from love to God, which they do only from love to themselves. They call mere speculative or natural knowledge, spiritual knowledge; and put conscience for grace; a servile, for a childlike fear; and common affections, that are only from natural principles, and have no abiding effect, for high discoveries, and eminent actings of grace. Yea, it is common with men to call their vicious dispositions by the name of some virtue. They call their anger and malice, zeal for a righteous cause, or zeal for the public good; and their covetousness, frugality.