A Syriac scholar friend tells me that this was written by Jacob of Serug (451-521) about St. Ephrem the Syrian (306-373):
The blessed Ephrem saw that the women were silent from praise, so in his wisdom he decided it was right that they should sing out. Just as Moses gave timbrels to the young girls, so too the discerning man composed hymns for virgins. As he stood among the sisters, it was his delight to stir these chaste women into songs of praise.. (Memra on Ephrem 20, §§96-98).
Your man Tertullian had some issues, but his picture of a Christian marriage has generally been regarded as true and beautiful.
"How beautiful, then, the marriage of two Christians: two who are one in hope, one in desire, one in the way of life they follow, one in the religion they practice. They are as brother and sister, both servants of the same Master. Nothing divides them, either in flesh or in spirit. They are, in very truth, two in one flesh; and where there is but one flesh there is also but one spirit. They pray together, they worship together, they fast together; instructing one another, encouraging one another, strengthening one another. Side by side they visit God's church and partake of God's Banquet; side by side they face difficulties and persecution, share their consolations. They have no secrets from one another; they never shun each other's company; they never bring sorrow to each other's hearts. Unembarrassed they visit the sick and assist the needy. They give alms without anxiety; they attend the Sacrifice without difficulty; they perform their daily exercises of piety without hindrance. They need not be furtive about making the Sign of the Cross, nor timorous in greeting the brethren, nor silent in asking a blessing of God. Psalms and hymns they sing to one another, striving to see which one of them will chant more beautifully the praises of their Lord. 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. "
This has generally been seen as a reference to the style of singing antiphonally back and forth at home, as in the psalms of the Office; but of course, it applies in the lives of our musical married couples at church, too!
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