Testify and Kyrie Eleison

These are two pieces, separate and apart from each other:

1.)
I must testify
To love and the truth I've seen
In the Son of God.

John 1:34
I have seen and I testify that this is the Son of God.

2.)
Criste eleison,
Take away all of our sins.
Oh, Lord have mercy.

John 1: 29
The next day John saw Jesus coming toward him and said, "Look, the Lamb of God, who takes away the sin of the world!..."