Luke 2 and Matthew 2 are full of witnesses. Shepherds hear angels and go “with haste” to Bethlehem, then tell everyone (Luke 2:8–20). Simeon, who had been promised by the Holy Ghost that he would see the Messiah, holds the baby in the temple (Luke 2:25–35). Anna, a widow in her eighties who served in the temple “night and day,” gives thanks and tells everyone looking for redemption (Luke 2:36–38). Wise men follow a star, fall down and worship, give gifts, and are warned in a dream to go home another way; then Joseph is warned to take his family to Egypt (Matthew 2:1–14). The manual invites youth to ask of each witness: what does this teach me about worshipping Jesus Christ and witnessing of Him?
Then comes the only story we have of Jesus as a youth: at twelve, the age of many in your class, He stays behind at the temple for three days. The Joseph Smith Translation of Luke 2:46 says the teachers were hearing Him and asking Him questions. His answer to His worried mother, “wist ye not that I must be about my Father’s business?” (Luke 2:49), shows He already knew who He was. Then He went home and “was subject unto them” (Luke 2:51). Being about God’s work and honoring your parents go together.
Luke 2:52 is the theme verse of the Children and Youth program: Jesus grew in wisdom (intellectual), stature (physical), favour with God (spiritual) and favour with man (social). New deacons and Young Women are setting goals in exactly those four areas this month, and For the Strength of Youth: A Guide for Making Choices has sections that line up with each. The manual also points out that the birth details testify of who Jesus is: Bethlehem means “house of bread” and He is the Bread of Life (John 6:35); He was laid in a manger, a feeding trough; shepherds came first to see the Good Shepherd (John 10:11); a new star announced the Light of the World (John 8:12).
Keep Herod’s part gentle: he was jealous and wanted to harm the child, and God protected Jesus by warning Joseph. There’s no need to dwell on the rest of Matthew 2:16–18 with this age.