A very old Blessing, the words are said to have been given by St Francis of Assisi to St Anthony of Padua 800 years ago:
May the Lord bless you and take you into his keeping;
May He show you His countenance; and take pity on you;
May He turn His eyes towards you and give you His peace.
[March 2013] I put that in my blog in May 2012 but it seems I was mistaken. I don't know why it has become associated with St Anthony and St Francis but the words of the blessing are much older than 800 years. The blessing is the priestly blessing given in the Tora, and in the Authorised Version translated like this:
The LORD bless thee, and keep thee:
The LORD make his face shine upon thee, and be gracious unto thee:
The LORD lift up his countenance upon thee, and give thee peace.