The first line of the fourth verse is "Faithful cross, true sign of triumph," and the third line of the first verse is "Now above the cross, the trophy" (the sense is completed in the next line: "Sound the loud triumphant lay").
There are also cross inscriptions in the last (sixth) musical phrase:
In the third verse, the text here is "On the cross His dying breath," completing the sense from the previous line: "Like a lamb He humbly yielded."