Here is my favorite quote from Tertullian:
“Beautiful the marriage of Christians, two who are in hope, one in desire, one in the way of life they follow, one in the religion they practice. They are both servants of the same Master. Nothing divides them, either in flesh or in spirit. They are two in one flesh, and, where there is one flesh there is also one spirit. They pray together, they worship together; instructing one another, strengthening one another. Side by side they visit God’s church; side by side they face difficulties and persecution, share their consolations. They have no secrets from one another; they never bring sorrow to each other’s hearts. Unembarrassed they visit the sick and assist the needy. They give alms without anxiety. Psalms and hymns they sing. Hearing and seeing this, Christ rejoices. To such as these He gives His peace. Where there are two together, there also He is present and where He is, there evil is not.”