From the Didache "The Lord's Teaching Through the Twelve Apostles to the Nations." Written in the first century. Pope Clement of Alexandria and other Early Church fathers referred to it as scriptural citation, quoting from it.

"Chapter 2. The Second Commandment: Gross Sin Forbidden

And the Second Commandment of the Teaching; You shall not commit Murder , you shall not commit Adultery, you shall not commit Pederasty, you shall not commit Fornication, you shall not Steal, you shall not practice Magic , you shall not practice Witchcraft , you shall not Murder a child by Abortion nor kill that which is begotten. You shall not covet the things of your neighbor"
CHURCH FATHERS: The Didache

From the Epistle of Barnabus

Barnabas 19:5
You shall not be of doubtful mind James 1:8 as to whether a thing shall be or not. You shall not take the name of the Lord in vain. You shall love your neighbour more than your own soul. You shall not slay the child by procuring abortion; nor, again, shall you destroy it after it is born. You shall not withdraw your hand from your son, or from your daughter, but from their infancy you shall teach them the fear of the Lord.
CHURCH FATHERS: Epistle of Barnabas

NB The Epistle of Barnabus is a 1st century document. The GOSPEL of Barnabus on the other hand was a medieval fake written after the time of Islam.