Definition and Concept
Personal sacrifice in the biblical context refers to the act of giving up one's own desires, possessions, or well-being for the sake of God, others, or a greater cause. It is a central theme throughout the Scriptures, illustrating the depth of commitment and love expected from believers.

Old Testament Foundations
The concept of sacrifice is deeply rooted in the Old Testament, where it primarily involved the offering of animals and other goods to God. These sacrifices were a means of atonement and worship. However, personal sacrifice extended beyond ritual offerings. Abraham's willingness to sacrifice his son Isaac (Genesis 22:1-19) exemplifies the ultimate test of faith and obedience to God. The prophet Samuel emphasized that obedience and personal sacrifice are more valuable than ritual offerings: "Does the LORD delight in burnt offerings and sacrifices as much as in obedience to His voice? Behold, obedience is better than sacrifice, and attentiveness is better than the fat of rams" (1 Samuel 15:22).

New Testament Teachings
In the New Testament, personal sacrifice takes on a more profound spiritual dimension. Jesus Christ embodies the ultimate sacrifice, offering Himself for the sins of humanity. His call to discipleship involves a life of self-denial and bearing one's cross: "Then Jesus said to His disciples, 'If anyone would come after Me, he must deny himself and take up his cross and follow Me'" (Matthew 16:24). The Apostle Paul further elaborates on this theme, urging believers to present their bodies as living sacrifices: "Therefore I urge you, brothers, on account of God’s mercy, to offer your bodies as living sacrifices, holy and pleasing to God, which is your spiritual service of worship" (Romans 12:1).

Examples of Personal Sacrifice
The early church provides numerous examples of personal sacrifice. The believers in Jerusalem sold their possessions to support one another (Acts 2:44-45). Paul, in his missionary journeys, endured hardships and persecution for the sake of the Gospel (2 Corinthians 11:23-28). The widow's offering of two small coins, though monetarily insignificant, was commended by Jesus as a great sacrifice because she gave all she had to live on (Mark 12:41-44).

Theological Implications
Personal sacrifice is not merely an act of giving up something; it is an expression of love, faith, and devotion to God. It reflects the believer's willingness to prioritize God's will over personal desires. Sacrifice is also a means of participating in Christ's sufferings and sharing in His mission. As Paul writes, "I have been crucified with Christ, and I no longer live, but Christ lives in me. The life I live in the body, I live by faith in the Son of God, who loved me and gave Himself up for me" (Galatians 2:20).

Practical Application
In contemporary Christian life, personal sacrifice can manifest in various forms, such as dedicating time to serve others, giving financially to support ministry work, or enduring persecution for one's faith. It calls believers to a lifestyle of selflessness and service, reflecting the sacrificial love of Christ in everyday actions.