Quincunx, n. (Arrangment of) five objects set so that four are at corners of square or rectangle & the other at its centre (e.g. the five on dice or cards;) So quincuncial

"In Hindu metaphysics the polarity of being, represented by Siva and Sakti, on a higher level becomes sheer unity and blends in the androgyne Ardhanarisvara. In the Satapatha Brahmana gods and demons engage in a contest. The god Indra says 'One' in the masculine form (eka), and the demons answer 'One' in the feminine (eka). Indra says 'Two', masculine dual (dvau), and they answer in the feminine dual (dve). When five comes up (panca), the devils are silenced. Five is above gender; it contains both odd and even (3 + 2), divisiveness and contrast; with five the four quarters centre (4 + 1) on the heart. Five symbolizes the androgyne as an achievement, as a return from polarity to unity ." E. Zolla, The Androgyne, p.5.

Mark 12: 2; Matt. 21:42 

Psalm 118: 22 is similar to Osirian ritual of the Egyptian Book of the Dead. 

“The stone which the builders rejected has become the chief corner stone.” 

p.25:   “The tentative reading  initiation, initiate or bringer of enlightenment for the number 5 would therefore seem to be justified initially.”

 “… in addition to its general sense of initiate, the number 5 may also be expected to occur with reference to any particularly important Messianic figure – to whom we could then presumably refer as the Great Initiate or the One-who-is-to-come.”