Sion - originally a stronghold captured by David (the 2nd king of the Israelites); above it was built a temple and later the name extended to the whole hill; finally it became a synonym for the city of Jerusalem; "the inhabitants of Jerusalem are personified as `the daughter of Zion' which means God is the rock of Sion and is also our Savior.

Rocher de SION
Perilleuse la pente aus pelerins d’honneur,
Montagne du rocher lache par notre:
Scandale aux insenses, mais ultime repere,
Doux Rocher de Sion, Jesus notre Sauveur.

Tu verses, sous les coups, le sang reparateur,
Reconciliant le Ciel a la maudite terre:
La justice et l’amour, engendrant ce mystere,
Se croisent sur l’autel coupable du pecheur.

A la croix rejete, sous le poids du peche,
O Saint santifie, qui crias ma victoire
Quant s’ouvrit le tombeau qui nous cachait Ta gloire!

Et, couronne de joie, au gallop chevauche,
O Christ ressuscite, Ton Saint-Esprit en nous
Suscite cet élan qui flechit nos genoux!

Amen