# passed by
"was leaving" or "was going"
# Matthew ... him ... He
Church tradition says that this Matthew is the author of this Gospel, but the text gives no reason to change the pronouns from "him" and "He" to "me" and "I."
# He said to him
"Jesus said to Matthew"
# He got up and followed him
"Matthew got up and followed Jesus." This means Matthew became Jesus's disciple.