Moses’ seat — representing the Law of Sinai. The disciples were all commanded by Christ to continue in doing what they were bidden from the Law.
This would be a part of “all things whatsoever I have commanded you.” (28:20).
Thus in Acts, they continued the legal observances in the temple, including the circumcision of males according to the covenant of circumcision for Israel, Sabbath keeping, abstaining from unclean meats, and so forth.
We must not restrict the instruction of our Lord in Matthew ch. 28 to Trinitarian Baptism. Which baptism, would not have included infants. Circumcision would have included infants — males only.
Some important words in the Scripture that don't always refer to the same thing each time they are used:
1. CHURCH - there are several (kinds of, and differing) churches referred to in the NT.
2. KINGDOM - there are differing kingdoms referred to in the Bible.
3. BAPTISM - there could be identified anywhere between seven and eleven different baptisms in the Bible.
4. SALVATION - Many kinds of salvation in the Bible.
5. GOSPEL - at least a half dozen subjects of “GOOD NEWS” spoken of in the NT.
Christ's point, in the completeness of chapter 23, is that we are to obey God's laws even if those laws are ministered to us by corrupt men. He spends the rest of the chapter excoriating the Pharisees for their behavior.
Thus in Acts, they continued the legal observances in the temple, including the circumcision of males according to the covenant of circumcision for Israel, Sabbath keeping, abstaining from unclean meats, and so forth.
Yes, †Paul wrote several epistles addressing that exact issue, telling--insisting--such observance is no longer necessary and can be set aside, in light of Christ's work on the Cross.
Fifteen centuries later, give or take, men came along who twisted these words into "faith, not works."
We must not restrict the instruction of our Lord in Matthew ch. 28 to Trinitarian Baptism.
No, He instructs the collected body of His Apostles and disciples (which was His nascent Catholic Church) to Trinitarian Baptism AND to instruct the observance of all the things He had taught.
Which baptism, would not have included infants.
Perhaps it did, perhaps it did not, but it does now.
If an adult is converting to Christianity, of course he will be baptized as an adult. If a child is born into Christianity, only an absurdly literal view of Scripture would insist that child forego baptism until adulthood.
Instead, a parent or godparent speaks for the child, rejecting Satan and accepting Christ as the child's Lord and Savior in the trinitarian formula.