John 14:16

Epistle of Ignatius to the Philippians

And there is also one Paraclete.[15]

Irenaeus Against Heresies Book III

[of the evangelical dispensation] presented by John's Gospel, in which the Lord promised that He would send the Paraclete;[155]

Tertullian Against Praxeas

Happily the Lord Himself employs this expression of the person of the Paraclete, so as to signify not a division or severance, but a disposition (of mutual relations in the Godhead); for He says, "I will pray the Father, and He shall send you another Comforter... even the Spirit of truth,"[100]

Tertullian Against Praxeas "another Comforter," indeed;[345]

A Treatise of Novatian Concerning the Trinity

But this Holy Spirit the Lord Christ calls at one time "the Paraclete," at another pronounces to be the "Spirit of truth."[245]

A Treatise of Novatian Concerning the Trinity

For, said He, "I will pray the Father, and He will give you another Advocate, that He may be with you for ever, even the Spirit of truth."[247]

Methodius Discourse IX. Tusiane

For the men of olden time and the law foretold to us the characteristics of the Church, and the Church represents those of the new dispensation which is to come. Whence we, having received Christ, saying, "I am the truth,"[7]