How so?
Catholics are Baptized by water the same way John the Baptist baptized Jesus. (For the forgiveness of sins and entrance into Christianity as a "new" being). Once a Catholic approaches an age of maturity, they are confirmed with the anointing of oil (Representing Fire) and they receive divine gifts from the Holy Spirit:
- Wisdom,
- Understanding,
- Knowledge,
- Fortitude or Courage,
- Counsel,
- Piety or Love, and
- Fear of the Lord.
This is the completion of what Jesus spoke about in the Gospel of John.
John 16:13
"But when he, the Spirit of truth, comes, he will guide you into all the truth. He will not speak on his own; he will speak only what he hears, and he will tell you what is yet to come."
In Mathew, John the Baptist references his baptism by water (forgiveness of sins) but states that one who is to come (Jesus) will baptize by the
Holy Spirit and Fire.
Matthew 3:11-17
11 “I baptize you with water for repentance. But after me comes one who is more powerful than I, whose sandals I am not worthy to carry. He will baptize you with the Holy Spirit and fire. 12 His winnowing fork is in his hand, and he will clear his threshing floor, gathering his wheat into the barn and burning up the chaff with unquenchable fire.”
The Baptism of Jesus
13 Then Jesus came from Galilee to the Jordan to be baptized by John. 14 But John tried to deter him, saying, “I need to be baptized by you, and do you come to me?”
15 Jesus replied, “Let it be so now; it is proper for us to do this to fulfill all righteousness.” Then John consented.
16 As soon as Jesus was baptized, he went up out of the water. At that moment heaven was opened, and he saw the Spirit of God descending like a dove and alighting on him. 17 And a voice from heaven said, “This is my Son, whom I love; with him I am well pleased.”
When Jesus was baptized by John, it allowed for the "opening of heaven" and for God's Holy Spirit to descend unto Jesus (and humanity). It demonstrated a new, deeper understanding of God's ways. Jesus demonstrated piety by having John baptize him so that "all righteousness would be fulfilled". It was a way to demonstrate a new way of living, a new life for humanity of piety, peace and servitude. This act of piety is exactly what God had intended for humanity and why he stated that "“This is my Son, whom I love; with him I am well pleased.” God then allowed the gifts of the Holy Spirit to be given to mankind, through the teachings and ministry of his son, Jesus Christ.
Matthew 28:19
"Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit"