What does the Bible say about discernment between good and evil?

Hebrews 5:14 emphasizes that strong spiritual discernment belongs to those who are mature and have exercised their senses to discern both good and evil. This discernment is not merely a moral judgment but a skill cultivated through a deep engagement with Scripture and the understanding that true goodness aligns with God's revelation. The ability to recognize false beliefs and practices—contrarily identified as evil—is critical, especially in times characterized by false Christianity. This discernment protects believers from apostasy and deepens their faith in Christ as the true source of righteousness.