Biblical Context:
The account of Peter visiting Mary's house is found in the Book of Acts, specifically in Acts 12:12-17. This event occurs during a time of intense persecution of the early Christian church. Herod Agrippa I, the ruling king, had begun to harass the church, leading to the martyrdom of James, the brother of John, and the imprisonment of Peter.

Scriptural Account:
After Peter's miraculous escape from prison, facilitated by an angel of the Lord, he makes his way to the house of Mary, the mother of John Mark. Acts 12:12 states, "When he realized this, he went to the house of Mary, the mother of John, also called Mark, where many people had gathered and were praying."

Significance of the Event:
1. Prayer and Community: The gathering at Mary's house highlights the early church's reliance on communal prayer during times of crisis. The believers were fervently praying for Peter's release, demonstrating their faith and dependence on God.

2. Role of Mary and John Mark: Mary, the mother of John Mark, is noted for her hospitality and support of the early church. Her home served as a meeting place for believers, indicating her significant role in the Christian community. John Mark, her son, would later accompany Paul and Barnabas on missionary journeys, suggesting that Mary's household was deeply involved in the spread of the Gospel.

3. Divine Intervention: Peter's escape and subsequent visit to Mary's house underscore the theme of divine intervention. The angelic deliverance of Peter from prison is a testament to God's power and protection over His servants, reinforcing the belief that God hears and answers the prayers of the faithful.

4. Peter's Leadership: Upon his arrival at Mary's house, Peter takes the opportunity to inform the gathered believers of his miraculous escape. Acts 12:17 records, "Peter motioned with his hand for them to be quiet and described how the Lord had brought him out of the prison. 'Tell these things to James and the brothers,' he said, and he left for another place." This demonstrates Peter's leadership and responsibility in ensuring that the church remains informed and encouraged despite persecution.

5. Faith Amidst Persecution: The early church's response to persecution, as seen in this account, serves as an example of steadfast faith. Despite the threat of arrest and execution, the believers continued to meet and pray, trusting in God's sovereignty and provision.

Theological Implications:
The visit to Mary's house illustrates the power of prayer, the importance of community, and the assurance of God's presence in times of trial. It also highlights the role of women in the early church, as Mary's home becomes a sanctuary for believers. This event encourages Christians to remain faithful and prayerful, trusting in God's deliverance and guidance.