Fasting and abstinence are practices observed by Christians around the world, especially during the solemn period of Lent and on Good Friday. Rooted in the biblical tradition, these acts of self-denial serve as a form of spiritual discipline, allowing believers to reflect on the sacrifice of Jesus Christ and to grow in their faith. The Bible, while not explicitly mentioning abstaining from red meat on Good Friday, does emphasize the importance of fasting with a sincere heart, as Jesus taught in the Sermon on the Mount (Matthew 6:17-18). This article delves into the significance of these practices, exploring their origins, variations, and the heart posture with which they should be approached.