The Bible warns that hardness of heart leads to a lack of understanding and compassion, stemming from self-righteousness and legalism.
In Mark 3:1-6, we see Jesus confront the hardness of the Pharisees' hearts. He describes their attitude as grieved and angry because they lacked compassion for a man in need. The hardness of heart is a result of self-righteousness that blinds one to the goodness of mercy and the presence of God. This hardening can stem from a prolonged focus on legalistic religion, diverting attention from the grace of God, which is essential for true worship and service. A heart hardened by legalism cannot see or appreciate the goodness of God in Christ.
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