Legalism

“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).” The Systematic Theology of John Brown of Haddington [Reformation Heritage Books: 2002] p. 212 (updated spellings and formatting).