Who said "We must be faithful even unto death."?

This quote is attributed to Christina Rossetti.

We must be faithful even unto death. - Christina Rossetti

"We must be faithful even unto death."

Christina Rossetti Faith

Poet English 1830–1894

"For there is no friend like a sister in calm or stormy weather."

"Better by far you should forget and smile than that you should remember and be sad."

"Oh, to be worn out by the world, to be cast aside and forgotten."

"Love will make a way out of no way."

"Faith guides me through difficult times."

"Faith is believing when you can't see."

"You have to believe in something, or you'll fall for anything."

"Faith in God and in each other is what sustains us"