'....believers must repent for their being discouraged by their sins. Their being discouraged by their sins will cost them many a prayer, many a tear, and many a groan; and that because their discouragements under sin flow from ignorance and unbelief. It springs from their ignorance of the richness, freeness, fullness, and everlastingness of God's love; and from their ignorance of the power, glory, sufficiency, and efficacy of the death and sufferings of the Lord Jesus Christ; and from their ignorance of the worth, glory, fullness, largeness, and completeness of the righteousness of Jesus Christ; and from their ignorance of that real, close, spiritual, glorious and inseperable union that it between Christ and their precious souls. Ah! did precious souls know and believe the truth of these things as they should, they would not sit down dejected and overwhelmed under the sense and operation of sin.'
Thomas Brooks, Precious Remedies Against Satan's Devices, p.147.