Albeit these practices stand simply without any precept for their observance, still it may be granted a good thing to establish some definite presumption, which may both add stringency to the admonition to, pray, and may, as it were by a law, tear us out from our businesses unto such a duty; so that—what we read to have been observed by Daniel also, in accordance (of course) with Israel’s discipline—we pray at least not less than thrice in the day, debtors as we are to Three—Father, Son, and Holy Spirit: of course, in addition to our regular prayers which are due, without any admonition, on the entrance of light and of night. But, withal, it becomes believers not to take food, and not to go to the bath, before interposing a prayer; for the refreshments and nourishments of the spirit are to be held prior to those of the flesh, and things heavenly prior to things earthly.

You will not dismiss a brother who has entered your house without prayer.—“Have you seen,” says Scripture, “a brother? you have seen your Lord;”—especially “a stranger,” lest perhaps he be “an angel.” But again, when received yourself by brethren, you will not make earthly refreshments prior to heavenly

Tertullian. 1885. “On Prayer.” In Latin Christianity: Its Founder, Tertullian, edited by Alexander Roberts, James Donaldson, and A. Cleveland Coxe, translated by S. Thelwall, 3:690. The Ante-Nicene Fathers. Buffalo, NY: Christian Literature Company.

“Pray without ceasing. In every thing give thanks: for this is the will of God in Christ Jesus concerning you. Quench not the Spirit.” – 1 Thessalonians 5:17-19