Final answer:
Baptised individuals are believed to share in Jesus's mission as king by becoming part of a royal priesthood, exemplifying the values of the Kingdom of God, serving others, and spreading the Christian faith through actions and words, such as through the sacrament of the Eucharist.
Step-by-step explanation:
Baptised people are believed to share in the mission of Jesus as king in several ways. This participation is rooted in biblical teachings that suggest that through baptism, individuals join a royal priesthood and holy nation, as proposed in the Bible (1 Peter 2:9 and Revelation 5:10). This concept reflects the idea that baptism confers a spiritual priesthood upon all believers, enabling them to take part in the Christian mission. They are thought to share in Jesus's kingly mission by living out the values of the Kingdom of God, leading by example, serving others, spreading the message of faith and salvation, and engaging in the spiritual works of mercy. This includes practices like partaking in the sacrament of the Eucharist, which commemorates Christ's sacrifice and is at the heart of many Christian traditions.