New Defender's Study Bible Notes
1:21 his name. This is the first of 144 references to the “name” or “names” of Christ. The word (Greek noma) occurs only about 95 times in the New Testament in reference to all other names. His name is indeed “above every name” even in this respect (Philippians 2:9).
1:21 JESUS. The Hebrew for “JESUS” is Yehoshua, meaning “Jehovah saves.” The name also may be contracted simply to Yeshua, which is the Hebrew word for “salvation,” frequently used in the Old Testament. It is also equivalent to “Joshua.” Appropriately, this is the first use of “save” in the New Testament.
1:23 a virgin. This is a quotation from Isaiah 7:14, the great prophecy of the virgin birth. The Greek word for “virgin” is parthenos, which never has any other meaning. The Hebrew word is almah, and there has been some unjustified controversy as to whether this word also has only this meaning. Its quotation here by Matthew using parthenos, guided by divine inspiration, settles this question. Isaiah prophesied the virgin birth (or better, the miraculous conception) of Jesus, and Matthew records the fulfillment.