Matthew the tax collector provides us with the 1st Gospel but also the 1st book of the New Testament. Not only that but he chooses to start this book off with a very very long list of all of Jesus' ancestors. While we normally would skip over this portion of scripture, we know that Paul tells us that all scripture is profitable and given to us to make us complete and equipped. This means that there is importance in every passage of scripture, even in a passage like this.