Definition and Importance
Integrity over appearance refers to the biblical principle that emphasizes the importance of inner moral character and truthfulness over outward appearances or superficial displays. This concept is deeply rooted in Scripture, where God consistently values the heart and intentions of individuals over their external actions or appearances.

Biblical Foundation
The Bible provides numerous examples and teachings that highlight the importance of integrity over mere appearance. One of the most direct statements comes from the prophet Samuel's anointing of David as king. When Samuel was sent to anoint one of Jesse's sons, he initially considered Eliab based on his appearance. However, God corrected him, saying, "Do not consider his appearance or his height, for I have rejected him. The LORD does not see as man does. For man sees the outward appearance, but the LORD sees the heart" (1 Samuel 16:7).

Old Testament Examples
1. Joseph: Despite being sold into slavery and later imprisoned, Joseph maintained his integrity. His commitment to righteousness, even when falsely accused by Potiphar's wife, exemplifies the value of integrity over appearance (Genesis 39).

2. Job: Known for his unwavering integrity, Job's account is a testament to maintaining righteousness despite external circumstances. God commends Job's integrity, saying, "Have you considered My servant Job? There is no one on earth like him, a man who is blameless and upright, who fears God and shuns evil" (Job 1:8).

New Testament Teachings
1. Jesus and the Pharisees: Jesus frequently criticized the Pharisees for their focus on outward religious observance while neglecting inner righteousness. In Matthew 23:27-28 , He declares, "Woe to you, scribes and Pharisees, hypocrites! You are like whitewashed tombs, which look beautiful on the outside but on the inside are full of dead men’s bones and every kind of impurity. In the same way, on the outside you appear to be righteous, but on the inside you are full of hypocrisy and wickedness."

2. The Sermon on the Mount: Jesus teaches that true righteousness exceeds that of the Pharisees and is a matter of the heart. He emphasizes the importance of sincerity in acts of worship, such as prayer and fasting, urging His followers to seek God's approval rather than human recognition (Matthew 6:1-18).

Apostolic Teachings
1. Paul's Letters: The Apostle Paul frequently addresses the theme of integrity. In his letter to the Galatians, he warns against seeking human approval, stating, "Am I now seeking the approval of men, or of God? Or am I striving to please men? If I were still trying to please men, I would not be a servant of Christ" (Galatians 1:10).

2. James on Faith and Works: The Epistle of James underscores the necessity of genuine faith manifested through actions. James 2:17 states, "So too, faith by itself, if it does not result in action, is dead." This teaching aligns with the principle that true integrity is demonstrated through consistent, righteous behavior.

Practical Application
Believers are called to prioritize integrity in their daily lives, ensuring that their actions align with their professed beliefs. This involves a commitment to truthfulness, ethical behavior, and a heart aligned with God's will. The pursuit of integrity over appearance requires a focus on spiritual growth and a reliance on the Holy Spirit to transform the heart.

Conclusion
The biblical principle of integrity over appearance challenges believers to cultivate a heart that seeks to honor God above all else. By prioritizing inner righteousness, Christians can reflect the character of Christ and serve as authentic witnesses to the world.