Legalism

What will it cost to be a true Christian? "it will cost him his self-righteousness. He must cast away all pride and high thoughts, and conceit of his own goodness. He must be content to go to heaven as a poor sinner, saved only by free grace, and owing all to the merit and righteousness of another."
J. C. Ryle

“A low view of law leads to legalism in religion; a high view makes man a seeker after grace” - J. Gresham Machen

“Every antinomian you meet is actually a legalist trying to escape from their legalism and using the wrong medicine.” - Sinclair B. Ferguson

"A Christian is not only one who has repented of his immorality, but, even more importantly, has repented of his morality. The more self-righteous one is, the worse it is for him. Our own merits are of no value for salvation, but will damn us. Whoever relies on his own goodness for salvation will suffer complete ruin."

“All men by nature, and even believers, in so far as they are unrenewed, desire to be under the covenant of works, and to obtain happiness by their own righteousness, or the condition of it. 1. It is natural to men, and hence men of every form or religion, station, office, education, or manner of life, agree in it (Romans 9:31,32; 10:3; Jonah 1:16; Matthew 19:16; John 6:28; Acts 2:37; Luke 15:19). 2. Our own working or suffering, in order to obtain happiness from God, is exceedingly suited to the pride of our corrupt nature, and makes us to look on God as our debtor (Romans 10:3; 7:9,13; John 5:45; Isaiah 63:3). It is like pangs of death to quit our hold of the law (Romans 7:4,9; Galatians 2:19). 3. Men’s ignorance of the extensive and high demands of the broken law, and of their own utter inability to keep it, — or their care to abridge their apprehensions of them, and to enlarge their conceit of their own ability, mightily promote their desire to be under it (Romans 7:9-13; 10:3; Galatians 4:21). 4. Men have naturally a peculiar enmity against God and his gracious method of redemption, — against Jesus Christ and his whole mediation, particularly his sacrificing work; and hence love to oppose the honor of it be cleaving to legal methods of obtaining happiness (Romans 8:7; John 15:24; Romans 10:3; 9:32; 5:21; Galatians 2:21; 5:2,4).” Quote From The Systematic Theology of John Brown of Haddington