He refers to Joseph, and so Good News Translation makes the identification for its readers: “Joseph got up.”

Rose and took translates a participle (the same form mentioned in verse 20) followed by a finite verb. Most translations use two finite verbs, as Revised Standard Version and Good News Translation have done. See also comments at verse 14 for suggestions on translating rose … took … went …, and verse 20 for land of Israel.

Quoted with permission from Newman, Barclay M. and Stine, Philip C. A Handbook on the Gospel of Matthew. (UBS Handbook Series). New York: UBS, 1988. For this and other handbooks for translators see here .