1 Thessalonians 5:17

Epistle of Polycarp to the Philippians

Next, [teach] your wives [to walk] in the faith given to them, and in love and purity tenderly loving their own husbands in all truth, and loving all [others] equally in all chastity; and to train up their children in the knowledge and fear of God. Teach the widows to be discreet as respects the faith of the Lord, praying continually[27]

Epistle of Ignatius to Polycarp

all in love, as also thou doest. Give thyself to prayer without ceasing.[3]

Epistle of Ignatius to Polycarp

all in love, as also thou doest. Give thyself to prayer without ceasing.[7]

Tertullian On Prayer

of prayer nothing at all has been prescribed, except clearly "to pray at every time and every place."[160]

Tertullian On Fasting

, at which they entered the temple: why should we not understand that, with absolutely perfect indifference, we must pray[79]

Origen Commentary on Matthew Book XIV

and pray "withoutceasing,"[206]