Definition:
Sudden deliverance refers to the immediate and often unexpected intervention by God to rescue His people from perilous situations. This divine act is characterized by its swiftness and the miraculous nature of the deliverance, often leaving no doubt about the hand of God at work.

Biblical Examples:

1. The Exodus from Egypt:
One of the most prominent examples of sudden deliverance is the Israelites' escape from Egypt. After years of slavery, God intervened through a series of plagues, culminating in the Passover and the parting of the Red Sea. Exodus 14:21-22 states, "Then Moses stretched out his hand over the sea, and all that night the LORD drove the sea back with a strong east wind and turned it into dry land. So the waters were divided, and the Israelites went through the sea on dry ground, with walls of water on their right and on their left."

2. Daniel in the Lions' Den:
Daniel's deliverance from the lions' den is another striking example. Despite being thrown into the den for his unwavering faith, God sent an angel to shut the lions' mouths. Daniel 6:22 records Daniel's testimony: "My God sent His angel and shut the mouths of the lions, so that they have not harmed me, because I was found innocent before Him; nor have I ever done any wrong against you, O king."

3. Peter's Release from Prison:
In the New Testament, the Apostle Peter experienced sudden deliverance when he was imprisoned by King Herod. Acts 12:7 describes the miraculous event: "Suddenly an angel of the Lord appeared, and a light shone in the cell. He struck Peter on the side and woke him up. 'Quick, get up!' he said, and the chains fell off Peter’s wrists."

4. Paul and Silas in Philippi:
While imprisoned in Philippi, Paul and Silas were delivered through a miraculous earthquake. Acts 16:26 recounts, "Suddenly a strong earthquake shook the foundations of the prison. At once all the doors flew open and everyone’s chains came loose."

Theological Significance:

Sudden deliverance underscores the sovereignty and power of God. It serves as a testament to His ability to intervene in human affairs in ways that defy natural explanations. These acts of deliverance are often accompanied by a call to faith and obedience, as they reveal God's faithfulness to His promises and His care for His people.

Spiritual Lessons:

1. Trust in God's Timing:
Sudden deliverance teaches believers to trust in God's perfect timing. While deliverance may not always come when expected, God's intervention is always timely and purposeful.

2. Faith in Adversity:
These accounts encourage believers to maintain faith even in dire circumstances, knowing that God is able to deliver them in ways beyond human comprehension.

3. God's Sovereignty:
Sudden deliverance highlights God's control over all creation, including natural elements and human affairs, reinforcing the belief in His ultimate authority.

4. Encouragement for Prayer:
The instances of sudden deliverance often follow earnest prayer, as seen in the early church's prayers for Peter (Acts 12:5). This encourages believers to persist in prayer, trusting in God's power to deliver.

Conclusion:
Sudden deliverance remains a powerful theme throughout Scripture, offering hope and assurance of God's active presence and intervention in the lives of His people.