The “us” could be referring to the Father, the Son and the Holy Spirit. Matthew 28:19 does not satisfy biblical rules of interpretation like two or three witnesses or emphatic emphasis.

“Through the Holy Spirit, Baptism is a bath that purifies, justifies, and sanctifies.” (CCC 1227) A Service of EWTN News, Inc.

"Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you; and lo, I ...

The “us” could be referring to the Father, the Son and the Holy Spirit. Matthew 28:19 does not satisfy biblical rules of interpretation like two or three witnesses or emphatic emphasis.

By Rollin Grams, Bible and Mission. (photo: Julia Michelle/Unsplash) ...

Here we see the Holy Spirit associated with the sanctifying of water. “Since the beginning of the world, water, so humble and wonderful a creature, has been the source of life and fruitfulness ...