Because Jesus said so.
When Jesus began His public ministry, the first thing He did was to be
baptized by John the Baptist and He Himself received the Holy Spirit. Further
recall the conversation between Jesus and Nicodemus as recorded in Jn 3:5, " Amen, Amen, I say to you, no one can enter
the kingdom of God without being born of water and spirit."
the Father sent Him
as the necessary condition for the founding of the Church for He is the
One Who is the Spirit of Truth and the Source of Holiness.
in the economy of salvation,
it is through the Holy Spirit, that Christian life flows to men from the
Trinity, through Him the love of God enters our hearts, and in Him all
are baptized to make one body in Christ.
without the Spirit,
we cannot achieve the fullness of life in Christ.
Let us look
to three scriptures to find out how Jesus Himself regarded the Holy Spirit.
1. Matt.3:13-17 "Then Jesus came from Galilee to
John at the Jordan to be baptized by him. John tried to prevent him, saying,
"I need to be baptized by you, and yet you are coming to me?"
Jesus said to him in reply, "Allow it now, for thus it is fitting
for us to fulfill all righteousness." Then he allowed him. After Jesus
was baptized, he came up from the water and behold, the heavens were opened
(for him), and he saw the Spirit of God descending like a dove (and) coming
upon him. And a voice came from the heavens, saying, "This is my beloved
Son, with whom I am well pleased." The Church sees the words,"for
thus it is fitting for us to fulfill all righteousness" as the same
as Jesus saying , " for thus it is fitting for us to submit to the
plan of God for the salvation of man."
Mark 1:9-11 we find,
"It happened in those days that Jesus
came from Nazareth of Galilee and was baptized in the Jordan by John. On
coming up out of the water He saw the heavens being torn open and the Spirit,
like a dove, descending upon Him. And a voice came from the Heavens, "You
are My beloved Son, with You I am well pleased."
Luke 3:21-22 we read,
"After all the people had been baptized, and
Jesus also had been baptized and was praying, heaven was opened and the
Holy Spirit descended upon Him in bodily form like a dove. And a voice
came from heaven, 'You are my beloved Son, with You I am well pleased'."
At one and the same time, Jesus
was baptized and filled with the Holy Spirit. The Church sees this as Jesus
modeling what we need to do to live the Christian life effectively.