Luke 18:27

Irenaeus Against Heresies Book II

It is also agreeable [to reason], and there may be well said regarding such a belief, that "the things which are impossible with men are possible with God."[48]

Irenaeus Against Heresies Book IV

for the Father is incomprehensible; but in regard to His love, and kindness, and as to His infinite power, even this He grants to those who love Him, that is, to see God, which thing the prophets did also predict. "For those things that are impossible with men, are possible with God."[281]

Irenaeus Against Heresies Book V

Wherefore also the Lord declares, "The things which are impossible with men, are possible with God."[27]

Theophilus to Autolycus Book II

But the power of God is shown in this, that, first of all, He creates out of nothing, according to His will, the things that are made. "For the things which are impossible with men are possible with God."[25]

Tertullian On Idolatry

? [You ask] "How many have fulfilled these conditions? "But what with men is difficult, with God is easy.[91]

Tertullian Against Praxeas

; who can be ignorant of it? Who also can be unaware that "the things which are impossible with men are possible with God? "[106]

Tertullian On Baptism

and, "The things very difficult with men are easy with God."[9]

Constitutions of the Holy Apostles Book V

our Saviour and Master Jesus Christ says, that "what is impossible with men is possible with God."[48]