1 John 2:1

Irenaeus Against Heresies Book III

Wherefore we have need of the dew of God, that we be not consumed by fire, nor be rendered unfruitful, and that where we have an accuser there we may have also an Advocate,[318]

Tertullian On Modesty

All the more fully: "Little children, these things have I written to you, lest ye sin; and if ye shall have sinned, an Advocate we have with God the Father, Jesus Christ the righteous; and, He is the propitiation for our sins."[245]

Origen de Principiis Book II

And since we have made mention of the Paraclete, and have explained as we were able what sentiments ought to be entertained regarding Him; and since our Saviour also is called the Paraclete in the Epistle of John, when he says, "If any of us sin, we have a Paraclete with the Father, Jesus Christ the righteous, and He is the propitiation for our sins; "[113]

Peter of Alexandria Canonical Epistle " "And if any man sin," says he, "we have an Advocate with the Father, Jesus Christ the righteous: and He is the propitiation for our sins."[42]

Origen Commentary on John Book I " And in his Catholic Epistle John says that He is a Paraclete for our souls with the Father, as thus:[107]

Origen Commentary on John Book VI

-what and how great things must be said of the Lamb of God, who was sacrificed for this very reason, that He might take away the sin not of a few but of the whole world, for the sake of which also He suffered? If any one sin, we read,[164]