18 At length, wishing her to understand, “Jesus says unto her, Go, call your husband, and come hither.” What means this, “Call your husband”? Was it through her husband that He wished to give her that water? Or, because she did not understand, did He wish to teach her through her husband? Perhaps it was as the apostle says concerning women, “If they wish to learn anything, let them ask their husbands at home.” But this the apostle says of that where there is no Jesus present to teach.
It is said, in short, to women whom the apostle was forbidding to speak in the Church. But when the Lord Himself was at hand, and in person speaking to her, what need was there that He should speak to her by her husband? Was it through her husband that he spoke to Mary, while sitting at His feet and receiving His word; while Martha, wholly occupied with much serving, murmured at the happiness of her sister? Wherefore, my brethren, let us hear and understand what it is that the Lord says to the woman, “Call your husband.”
For it may be that He is saying also to our soul, “Call your husband.” Let us inquire also concerning the soul's husband. Why, is not Jesus Himself already the soul's real husband? Let the understanding be present, since what we are about to say can hardly be apprehended but by attentive hearers: therefore let the understanding be present to apprehend, and perhaps that same understanding will be found to be the husband of the soul.
Source: Tractates on the Gospel of John (New Advent)