This verse is part of a list of the twelve apostles chosen by Jesus. It provides names and, in some cases, additional information to distinguish between people with the same name or to highlight something about their background. Let's break down each name:

Philip: One of the apostles. We know from other accounts that Philip was from Bethsaida and was responsible for introducing Nathanael (Bartholomew) to Jesus.

Bartholomew: Generally considered to be the same person as Nathanael, who is mentioned in the Gospel of John. Bartholomew means "son of Tolomai."

Thomas: Also known as "Doubting Thomas" because he initially doubted Jesus' resurrection until he saw and touched the wounds.

Matthew the tax collector: Also known as Levi. The fact that he is identified as a tax collector is significant because tax collectors were generally despised by the Jewish people for collaborating with the Roman authorities and for often being corrupt. His inclusion in the list shows that Jesus called people from all walks of life, even those considered outcasts.

James the son of Alphaeus: To distinguish him from the other James (James, the brother of John), he's identified by his father's name.

Lebbaeus, who was also called Thaddaeus: The identification of Lebbaeus with Thaddaeus is interesting because some manuscripts list "Judas son of James" instead. It's possible Lebbaeus was a nickname or another name for either Thaddaeus or Judas son of James, with variations occurring in different manuscript traditions.

In summary, this verse simply provides a list of some of the twelve apostles, adding details to distinguish between them where necessary or to highlight something significant about their background (as in the case of Matthew). It shows the diversity of the group Jesus chose to follow him.