Mark 2:14

He saw Levi (the son) of Alphæus, i.e., He saw Matthew, who by another name is called Levi before he was called by Christ, for after his vocation he is always called Matthew. 0f Alphæus, i.e., the son, as the Syriac expresses it. This Alphæus is a different person from the Alphæus who was the husband of Mary of Cleopas, who was the father of James the Less and Jude (Matthew 10:3). Luke and Mark call Matthew Levi, out of regard for his good name, because this name of Levi was known but to few. But he calls himself Matthew, to humiliate himself, and to profess openly that he was a sinner and a publican.

And rising up, &c., i.e., leaving everything. Wherefore Bede saith, "He left his own possessions who was wont to seize those of others. He left also the accounts of his taxes imperfect, and not cast up, because the Lord had so inflamed him that he straightway followed Him who called him."