ISB ~ Luke 1 v11

angel of the Lord:Angels play important roles in salvation history. (1) Angels are closely connected with worship. Since the Temple was an earthly model of God’s heavenly sanctuary (Heb 8:1-5), the Israelites believed that priests officiated on earth just as the angels ministered in heaven (Is 6:1-6; Rev 8:2-6; 15:5-8). The Temple itself was adorned with crafted images of angels, e.g., cherubim (Ex 25:18-22; 1 Kings 6:2336). (2) Angels deliver news of conception and childbirth, as with Ishmael (Gen 16:11), Isaac (Gen 18:10), and Samson (Judg 13:3-5). (3) Angels appear often in Luke (1:26; 2:9, 13; 22:43; 24:4) (CCC 332, 336).