Eph. 5:32Thus, there is no other fashioned from the side of Christ except the one. Hence there is one mystical place in Jesus Christ's side, from the lance of the soldier, from which flowed water and blood. These are two symbols of the one Church. Hence there was one ark saved in the flood and no other. If anyone could have escaped outside of Noah's Ark, then one who is outside of the Church might escape.
Cyprianus, De unitate ecclesiae 56 (CCSL 3: 253-254)Hence, there was one tabernacle on the mountain and one exemplar shown to Moses. Hence there was one place before the Lord in which Moses saw the final work of the supreme hand, the Lord saying;
p.81There is a place by me. Stand in the cleft of the rock and you will see my back.
Exod. 33:21-23The rock, however, was Christ;
1 Cor. 10:4the back of his hand was the incarnation; the one cleft, the one Passion; the one place can be figuratively understood as the one Church. Take note that the right hand of the Lord is not seen except in one place, in one rock, in one cleft. Only the one home of Rab the harlot was saved from the burning of Jericho through the scarlet rope. Hence one temple was built by Solomon. Behold, how good and pleasant it is when brothers dwell in unity!
Ps. 132:1I believe you have well remembered how all these things are explained with regard to the unity of the Church.