"No man can of himself understand his errors. “The heart is deceitful above all things, and desperately wicked; who can know it?” Jeremiah 17:9 . The lips may express a poverty of soul that the heart does not acknowledge. While speaking to God of poverty of spirit, the heart may be swelling with the conceit of its own superior humility and exalted righteousness. In one way only can a true knowledge of self be obtained. We must behold Christ. It is ignorance of Him that makes men so uplifted in their own righteousness. When we contemplate His purity and excellence, we shall see our own weakness and poverty and defects as they really are. We shall see ourselves lost and hopeless, clad in garments of self-righteousness, like every other sinner. We shall see that if we are ever saved, it will not be through our own goodness, but through God's infinite grace. COL 159.1"
"The heart is deceitful above all things, and desperately wicked: who can know it?"
Ellen White directly references Jeremiah 17:9 in this passage.
"The prayer of the publican was heard because it showed dependence reaching forth to lay hold upon Omnipotence. Self to the publican appeared nothing but shame. Thus it must be seen by all who seek God. By faith—faith that renounces all self-trust—the needy suppliant is to lay hold upon infinite power. COL 159.2"
"The sacrifices of God are a broken spirit: a broken and a contrite heart, O God, thou wilt not despise."
Both passages emphasize humility and a broken spirit as necessary for approaching God. The EGW quote expands on the idea of dependence and renouncing self-trust, aligning with the Psalm's focus on a contrite heart.