21and this water symbolizes baptism that now saves you alsonot the removal of dirt from the body but the pledge[a] of a good conscience toward God. It saves you by the resurrection of Jesus Christ,
Acts 2:38-39 (New International Version)
38Peter replied, "Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit. 39The promise is for you and your children and for all who are far offfor all whom the Lord our God will call."
Titus 3:5-6 (New International Version)
5he saved us, not because of righteous things we had done, but because of his mercy. He saved us through the washing of rebirth and renewal by the Holy Spirit, 6whom he poured out on us generously through Jesus Christ our Savior,
Matthew 18:6 (New International Version)
6But if anyone causes one of these little ones who believe in me to sin, it would be better for him to have a large millstone hung around his neck and to be drowned in the depths of the sea. (little children believing)
13But the angel said to him: "Do not be afraid, Zechariah; your prayer has been heard. Your wife Elizabeth will bear you a son, and you are to give him the name John. 14He will be a joy and delight to you, and many will rejoice because of his birth, 15for he will be great in the sight of the Lord. He is never to take wine or other fermented drink, and he will be filled with the Holy Spirit even from birth. (Holy Spirit in a babe from birth; John the Baptist)
14But as for you, continue in what you have learned and have become convinced of, because you know those from whom you learned it, 15and how from infancy you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus. ( Another infant knowing the Scripture)
26You are all sons of God through faith in Christ Jesus, 27for all of you who were baptized into Christ have clothed yourselves with Christ. 28There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus. 29If you belong to Christ, then you are Abraham's seed, and heirs according to the promise.
Matthew 28:18-20 (New International Version)
18Then Jesus came to them and said, "All authority in heaven and on earth has been given to me. 19Therefore go and make disciples of all nations, baptizing them in[a] the name of the Father and of the Son and of the Holy Spirit, 20and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age."
Mark 16:16 (New International Version)
16Whoever believes and is baptized will be saved, but whoever does not believe will be condemned
Acts 2:38 (New International Version)
38Peter replied, "Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit. (Everyone one of you not all you adults!!)
Acts 22:16 (New International Version)
16And now what are you waiting for? Get up, be baptized and wash your sins away, calling on his name.
There is not a single passage in Scripture which instructs us not to baptize for reasons of age, race, or gender. On the contrary, the divine commands to baptize in Scripture are all universal in nature. The promises and power of Baptism are extended to all in Scripture--including infants-and are available to all.
While I agree with all the Scriptures you quoted - minus your bracketed comments, I think you are sadly mistaken. I could post a very long article addressing your assertions but I'm short of time at this moment.
Let me just leave you with this comment: I have traced the practice of the early churches relative to baptism, from their commencement until the time that sprinkling was first introduced among them; and I find that in the first three centuries no mode other than immersion, and no one was baptized other than those old enough to understand the Gospel and make a profession of their faith. After infant baptism was introduced (it was still an immersion) many writers rose up to condemn it as an innovation of the command of Christ that believers only were to get baptized. Baptism by immersion continued to be the prevailing practice of all churches as late as the 14th century. And, BTW, infant baptism had not come into general use before the time of Tertullian, and he was openly against that practice - read his writings!