My dad found these two texts in a book whose title I don't know. For a guess of the origin, see below.
sed libera, mais delivre nous, sire, a malo, de tout mal et de cruel martire
And this a prayer from the 14th century:
pater noster, tu n'ies pas foulz Quar tu t'ies mis en grand repos Qui es montes haus in celis
Can you translate these texts?
Unfortunately I cannot provide more context for this. My dad took a photo of a page from a translated book and sent it to me. The book has these words left untranslated! I realised that this is a mixture of Latin and French (from Google Translate) so that's why I posted it here, believing a person who knows Latin may know old French as well.
Apparently, if my dad has found it correctly, this is from the Carmina Burana, which by googling I found is an old manuscript.