“The point is that the early Christians in the late first, second, and third centuries were weighty in many ways in their understanding of the Lord.”
Your point is, of course, interesting, but also irrelevant to the conversation we’ve had here. Though living early, they were not equal to the weight of Scripture.
Show me in the New Testament the story about an already Christian family welcoming a newborn child, celebrating it, and raising it.
15 And they brought unto him also infants, that he would touch them: but when his disciples saw it, they rebuked them. 16 But Jesus called them unto him, and said , Suffer little children to come unto me, and forbid them not: for of such is the kingdom of God. 17 Verily I say unto you, Whosoever shall not receive the kingdom of God as a little child shall in no wise enter therein .
Jesus says in Luke that INFANTS should be able to come to Him.
Peter, apparently learned that lesson well.
Peter said, "39 The promise is for you and your children and for all who are far off--for all whom the Lord our God will call."
Couple that with Irenaeus' words that infants can be born again. "He came to save all through means of Himself-all, I say, who through Him are born again to God(148) -infants,(149) and children, and boys, and youths, and old men. "