To Imitation

'Adoration of the Magi', c.1460, from a medieval Book of Hours

‘This is the day which David sang of in the psalms: “All the nations you have made shall come and worship you, O Lord, and glorify your name”; and again, “The Lord has made his salvation known; in the sight of the nations he has revealed his justice”.
 
This indeed we know to be taking place ever since the three Magi were called from their far-off land and were led by the star to recognise and worship the king of heaven and earth. And surely their worship of him exhorts us to imitation; that, as far as we can, we should be at the service of this grace which invites all men to Christ.
 
You ought to help one another, dearly-beloved, in this zeal, so that in the kingdom of God, which is reached by right faith and good works, you may shine as children of the light, through our Lord Jesus Christ, who lives and reigns with God the Father and the Holy Spirit for ever and ever. Amen’.
 
from Sermon 3 by Pope St Leo the Great, c.400-461