The term "Three Men" in the Bible can refer to several distinct groups or narratives, each with its own theological and historical significance. These instances often highlight themes of divine intervention, faith, and the fulfillment of God's promises.

1. The Three Visitors to Abraham (Genesis 18:1-15): One of the most notable references to "three men" is found in the account of Abraham's encounter with three visitors by the oaks of Mamre. In Genesis 18:1-2 , it is written: "Then the LORD appeared to Abraham by the Oaks of Mamre, while he was sitting at the entrance to his tent in the heat of the day. And Abraham looked up and saw three men standing nearby." These visitors are often interpreted as a theophany, with one of the men being the LORD Himself and the other two being angels. This encounter is significant as it precedes the announcement of the birth of Isaac, the child of promise, to Abraham and Sarah. The narrative underscores themes of hospitality, divine promise, and the miraculous nature of God's covenant with Abraham.

2. The Three Men in the Fiery Furnace (Daniel 3): Another prominent account involving three men is found in the Book of Daniel, where Shadrach, Meshach, and Abednego are cast into a fiery furnace by King Nebuchadnezzar for refusing to worship a golden image. Daniel 3:23-25 states: "And these three men, firmly bound, fell into the blazing fiery furnace. Then King Nebuchadnezzar leaped to his feet in amazement and asked his advisers, 'Were there not three men that we tied up and threw into the fire?' They replied, 'Certainly, O king.' 'Look!' he exclaimed. 'I see four men, unbound and unharmed, walking around in the fire, and the fourth looks like a son of the gods!'" This miraculous deliverance is a powerful testament to God's protection and presence with His faithful servants, even in the face of persecution and death. The account emphasizes the sovereignty of God over earthly powers and the importance of steadfast faith.

3. The Three Men Sent by Cornelius (Acts 10:1-33): In the New Testament, the account of Cornelius, a Roman centurion, involves three men sent to the Apostle Peter. Acts 10:7-8 records: "When the angel who spoke to him had gone, Cornelius called two of his servants and a devout soldier from among his personal attendants. He explained what had happened and sent them to Joppa." These three men play a crucial role in the unfolding of God's plan to extend the Gospel to the Gentiles. Their visit to Peter leads to a significant revelation and the subsequent baptism of Cornelius and his household, marking a pivotal moment in the early Church's mission and the breaking down of ethnic and cultural barriers.

Each of these instances of "three men" in the Bible serves to illustrate key aspects of God's interaction with humanity, His faithfulness to His promises, and the unfolding of His redemptive plan throughout history.