This text, Aurora lucis rutilat, is a Latin text from the 5th century. It's been put with the tune Puer nobis in the Hymnal 1982 and in others, which is a good, joyful tune to which to sing it (although a little slow in the linked version). This is a 15th century tune that was adapted by Michael Praetorius.
That Eastertide with joy was bright,
The sun shone out with fairer light,
When, to their longing eyes restored,
The apostles saw their risen Lord.
He bade them see His hands, His side,
Where yet the glorious wounds abide;
The tokens true which made it plain
Their Lord indeed was risen again.
Jesus, the King of gentleness,
Do Thou Thyself our hearts possess
That we may give Thee all our days
The tribute of our grateful praise.
O Lord of all, with us abide
In this our joyful Eastertide;
From every weapon death can wield
Thine own redeemed forever shield.
All praise be Thine, O risen Lord,
From death to endless life restored;
All praise to God the Father be
And Holy Ghost eternally.