Mark 16:5-7: "5 And entering the tomb, they saw a young man sitting on the right side, dressed in a white robe, and they were alarmed. 6 And he said to them, 'Do not be alarmed. You seek Jesus of Nazareth, who was crucified. He has risen; he is not here. See the place where they laid him. 7 But go, tell his disciples and Peter that he is going before you to Galilee. There you will see him, just as he told you.'"
John 20:24-29: "24 Now Thomas, one of the Twelve, called the Twin, was not with them when Jesus came. 25 So the other disciples told him, 'We have seen the Lord.' But he said to them, 'Unless I see in his hands the mark of the nails, and place my finger into the mark of the nails, and place my hand into his side, I will never believe.'
"26 Eight days later, his disciples were inside again, and Thomas was with them. Although the doors were locked, Jesus came and stood among them and said, 'Peace be with you.' 27 Then he said to Thomas, 'Put your finger here, and see my hands; and put out your hand, and place it in my side. Do not disbelieve, but believe.' 28 Thomas answered him, 'My Lord and my God!" 29 Jesus said to him, 'Have you believed because you have seen me? Blessed are those who have not seen and yet have believed.'"
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As far as the text, the only difference between LSB #470 and LSB #471 is the structure, specifically where and how often the refrain occurs. For my transcription, I followed LSB #470. The text is public domain:
O sons and daughters of the King,
Whom heav'nly hosts in glory sing,
Today the grave has lost its sting!
Alleluia, alleluia, alleluia!
That Easter morn, at break of day,
The faithful women went their way
To seek the tomb where Jesus lay.
Alleluia, alleluia, alleluia!
An angel clad in white they see,
Who sits and speaks unto the three,
"Your Lord will go to Galilee."
Alleluia, alleluia, alleluia!
That night the apostles met in fear;
Among them came their master dear
And said, "My peace be with you here."
Alleluia, alleluia, alleluia!
When Thomas first the tidings heard
That they had seen the risen Lord,
He doubted the disciples' word.
Alleluia, alleluia, alleluia!
"My piercèd side, O Thomas, see,
And look upon My hands, My feet;
Not faithless but believing be."
Alleluia, alleluia, alleluia!
No longer Thomas then denied;
He saw the feet, the hands, the side;
"You are my Lord and God!" he cried.
Alleluia, alleluia, alleluia!
How blest are they who have not seen
And yet whose faith has constant been,
For they eternal life shall win.
Alleluia, alleluia, alleluia!
On this most holy day of days
Be laud and jubilee and praise:
To God your hearts and voices raise.
Alleluia, alleluia, alleluia!
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The text from Mark appears in the second and third verses, and the text from John appears in verses five through eight.
The fourth verse also comes from John 20, but from shortly before what's cited. John 20:19: "On the evening of that day, the first day of the week, the doors being locked where the disciples were for fear of the Jews, Jesus came and stood among them and said to them, 'Peace be with you.'"
"Today the grave has lost its sting!" in the first verse is from 1 Corinthians 15:55: "'O death, where is your victory? O death, where is your sting?'"
The fourth verse also comes from John 20, but from shortly before what's cited. John 20:19: "On the evening of that day, the first day of the week, the doors being locked where the disciples were for fear of the Jews, Jesus came and stood among them and said to them, 'Peace be with you.'"
"Today the grave has lost its sting!" in the first verse is from 1 Corinthians 15:55: "'O death, where is your victory? O death, where is your sting?'"
