Actually a LOT has changed. What HASN'T changed is that 59 years later, I'm STILL Born again by FAITH in the perfect SIN OFFERING of Jesus on the cross for me.Because you refuse to acknowledge that you are baptized into Christ. Therefore you were baptized in the Southern Baptist manner not int Christ's death.
2 Corinthians 4:3
But if our gospel be hid, it is hid to them that are lost:
That is a confession of you obeying the baptists and not Jesus. I suppose nothing has changed in those 59 years.
At least the process of Circumcision was nicely explained as to "Spiritual significance" in the OLD Testament, and it was a permanent PHYSICAL evidence of one's place in the Jewish community (now not so much since male babies are circumcised routinely for hygienic reasons). Water baptism in the New Testament, not so much. I can SAY that I was baptized, but there's no physical evidence that it ever happened.