"O God of God, O Light of Light"

Recently, I was looking at "O God of God, O Light of Light" and noticed a few instances where the tune ("O grosser Gott") ascends while the text mentions "rais[ing]" or "lift[ing]."

The fourth verse begins with the line "Then raise to Christ a mighty song," sung to this ascending phrase:

The third verse ends with the lines "Lift up your heads, your King awaits. / We lift them up.  Amen, amen." sung to these phrases:

There's an interval of a fourth (F to Bb) for "Lift up," and a gradual rise (F G A Bb) for "We lift them up."

There's an-other ascent for "Lift up your heads, O mighty gates!" in the third verse, but since it's a small interval ("Lift up" is sung to a second:  F to G), I'm not going to bother with including the notation.