two
A number symbolizing the parents of the human race, the two-fold nature of our Lord, the sun and moon, two of every creature saved in the ark, cherubim in the tabernacle, stones, rings, golden chains, tables of stone, turtle doves and young pigeons, goats, loaves, lambs, bullocks, mites of the widow, thieves on the cross, angels at the tomb, believers on the way to Emmaus, etc. (Webber, 1938)