Water: being born.
2nd = I’m not that up on that part of the law for the Hebrews. I do believe your question has nothing to do with this discussion because baptism is not the replacement for circumcism, IMO, as I look at the Bible on the issue.
Nobody is saying baptism replaces circumcision. John Calvin regards circumcision
anagogically as the anticipation of baptism.
In Acts 16:15,33, 18:8 (cf. 11:14), and 1 Corinthians 1:16 it is stated that an individual and his whole household were baptized. It would be hard to say this involved no small children.
Paul in Colossians 2:11-13 makes a connection between baptism and circumcision. Israel was the church before Christ (Acts 7:38, Romans 9:4). Circumcision, given to 8-day old boys, was the seal of the covenant God made with Abraham, which applies to us also (Galatians 3:14,29).
It was a sign of repentance and future faith (Romans 4:11).
Infants were just as much a part of the covenant as adults (Genesis 17:7, Deuteronomy 29:10-12, cf. Matthew 19:14).
Likewise, baptism is the seal of the New Covenant in Christ. It signifies cleansing from sin, just as circumcision did (Deuteronomy 10:16, 30:6, Jeremiah 4:4, 9:25, Romans 2:28-9, Philippians 3:3). Infants are wholly saved by God’s grace just as adults are, only apart from their rational and willful consent. Their parents act in their behalf.
Paul . . . adds that the Colossians had been buried with Christ through baptism [Col 2:12]. By this he means that baptism is today for Christians what circumcision was for the ancients.
John Calvin
Therefore, this view was held by the three major branches of the early Protestant movement: Calvinist, Lutheran, and Zwinglian. In all likelihood, such arguments could probably be found in Anglican and Methodist writings as well (since they, too, accept infant baptism). It would be denied, of course, by the Anabaptists (and the later Baptists), who espoused believer baptism for those persons attaining the age of reason only.
Baptism and its Parallel With Circumcision (John Calvin)