The MISC@1 mentions singing hymns during the Last Supper : `` When they had sung the hymn , they went out to the Mount of Olives '' .

The MISC@1 , a MISC@2 holy book , tells how PERSON@1 and his friends sang together : `` When they had sung the hymn , they went out to the Mount of Olives '' -LRB- PERSON@2 | NUMBER@1 -RRB- .
