What Star is This, Puer Nobis

What star is this, with beams so bright,
More lovely than the noonday light?
‘Tis sent to announce a newborn King,
Glad tidings of our God to bring.

‘Tis now fulfilled what God decreed,
“From Jacob shall a star proceed”;
And lo! the Eastern sages stand
To hear in heaven the Lord’s command.

O Jesus, while the star of grace
Impels us on to seek Thy face,
Let not our slothful hearts refuse
The guidance of Thy light to use.