Interestingly enough, I couldn’t find mention of infant baptism in 1Peter 3:21

But, I did find in Luke 2:22-23, it mentions dedicating of a child to God

Like I asked, what sign, or confirmation, do YOU, or your church/religion have, that after baptizing the infant, that, he/she is saved?And if sinning caused you to lose your salvation, we’d all lose ours! I like Revelations 22:1-5, because it says thar when we see Jesus, we won’t be any church or denomination, we’ll just all be believers! And, based on what you have said, we all have (to a degree) a man-made, fallible doctrine!
1beleevr? Way back in post #93 I asked you by what mechanism you believe infants are saved. I asked again later, and again, and I’m still not sure what you believe.
It’s puzzling why you won’t answer that question. **It would appear that you realize that if you answer that, all of your once saved always saved doctrine falls apart. **
Here’s the thing: if you believe all infants who die automatically go to heaven, then it should follow that anyone who dies will automatically go to heaven. There’s no need to do anything, because Christ’s atoning death on the cross saved us all. Remember, you believe you can’t lose your salvation.
However, Catholicism provides a wonderful response to this: 1 Peter 3:21. Baptism now saves you.
Here’s even more on how we are saved:
"How does one receive salvation, justification, new birth, and eternal life?
By believing in Christ (Jn 3:16; Acts 16:31)?
By repentance (Acts 2:38; 2 Pet 3:9)?
By baptism (Jn 3:5; 1 Pet 3:21; Titus 3:5)?
By the work of the Spirit (Jn 3:5; 2 Cor 3:6)?
By declaring with our mouths (Lk 12:8; Rom 10:9)?
By coming to a knowledge of the truth (1 Tim 2:4; Heb 10:26)?
By works (Rom 2:6-7; James 2:24)?
By grace (Acts 15:11; Eph 2:8)?
By his blood (Rom 5:9; Heb 9:22)?
By his righteousness (Rom 5:17; 2 Pet 1:1)?
By his Cross (Eph 2:16; Col 2:14)?
Can we cut any one of these out of the list and proclaim it alone as the means of salvation? Can we be saved without faith? Without God’s grace? Without repentance? Without baptism? Without the Spirit?
The Answer:
These are all involved and necessary; not one of them can be dismissed as a means of obtaining eternal life. Neither can one be emphasized to the exclusion of another. They are all involved in salvation and entry into the Church. The Catholic Church does not divide these various elements of salvation up; overemphasizing some while ignoring others; rather, she holds them all in their fullness." from Steve Ray, Catholic Apologist
Source
here.