..they sang a (hallel^) psalm and went ... to the garden

The Lord has made this marvellous day let us rejoice and be glad in it. Psalm 118:24 (PM Version)

Give all your worries and cares to God, for He cares about you, even the small things. 1 Peter 5:7 (PM Version)

The Lord has made this marvellous day 
let us rejoice and be glad in it.
So Hallel psalms sing, chant, or say,
as Passover's songs^ were sung to wit

"untill" that one feast when the lamb
was sacrificed outside the city
of God, Zion's Jerusalem
with all the bloody knitty-gritty

of forming clothing made from skin,
building a portal to a new realm -
(new hea'en and earth to walk within)
turning tortures to hea'en, from hell.

Till even the worst things of Earth:
treachery, torture, taunting, & death;
on this marvelous day, then helped birth
by God's deep-magic, through that new "Seth"* ...

a greater beauty, deeper life,
a graceousness that has entered here,
combined with truth which enters strife
to act and save, with blood, sweat and tears.

Give to God all worries and cares,
for He cares about you & your growth,
even the small things that are there 
(or that aren't), for he's given his troth!

*"Seth" was the Son-of-Adam in the biblical narrative who provided the alternative to "Cain".
^ https://en.m.wikipedia.org/wiki/Hallel : Hallel consists of six Psalms (113–118), which are recited as a unit, on joyous occasions[2].. . Hallel is recited during the evening prayers on the first (and, outside Israel, second) night of Pesach, except byLithuanian and German Jews, and by all communities during the Pesach Seder service. According to the Talmud,[3]there was a dispute between the school of Hillel and the school of Shammai regarding the reading of Hallel onPesach. According to the school of Shammai, only the first psalm (Ps. 113) should be read before the meal, whereas the school of Hillel advocated reading the first two psalms (Ps. 113 and 114). The remaining Psalms would be said after the Grace After Meals.. .