Origen c.245
“Concerning the four Gospels which alone are uncontroverted in the Church of God under heaven, I have learned by tradition that the Gospel according to Matthew, who was at one time a tax collector and afterwards an Apostle of Jesus Christ, was written first and that he composed it in the Hebrew tongue and published it for the converts from Judaism. The second written was that according to Mark, who wrote it according to the instruction of Peter, who, in his General Epistle, acknowledged him as a son, saying, “The church that is in Babylon, chosen together with you, greets you and so does Mark my son.” And third, was that according to Luke, the Gospel commended by Paul, which he composed for the converts from the Gentiles. Last of all, that according to John.” (Commentary on Matthew 1)
Tertullian c.207
“The same authority of the apostolic churches will afford evidence to the other Gospels also, which we possess equally through their means, and according to their usage. I mean the Gospels of John and Matthew while that which Mark published may be affirmed to be Peter’s whose interpreter Mark was. For even Luke’s form of the Gospel men usually ascribe to Paul. And it may well seem that the works which disciples publish belong to their masters.”
(Against Marcion 4.5)
Tertullian c.207
“We lay it down as our first position, that the evangelical Testament has apostles for its authors, to whom was assigned by the Lord Himself this office of publishing the gospel… Of the apostles, therefore, John and Matthew first instill faith into us; while of apostolic men, Luke and Mark renew it afterwards. These all start with the same principles of the faith, so far as relates to the one only God the Creator and His Christ, how that He was born of the Virgin, and came to fulfill the law and the prophets.”
(Against Marcion 4.2)
Irenaeus c.180
“Matthew also issued a written Gospel among the Hebrews in their own dialect, while Peter and Paul were preaching at Rome, and laying the foundations of the Church. After their departure, Mark, the disciple and interpreter of Peter, did also hand down to us in writing what had been preached by Peter. Luke also, the companion of Paul, recorded in a book the Gospel preached by him. Afterwards, John, the disciple of the Lord, who also had leaned upon His breast, did himself publish a Gospel during his residence at Ephesus in Asia.”
(Against Heresies 3.1.1)
Irenaeus is important to note as confirmation, he was a disciple of Polycarp wh owas a disciple of John the Apostle.