John's Gospel gives another perspective of Jesus:
In the beginning was the Word, and the Word was with God, and the Word was God.
He was in the beginning with God. All things came to be through him, and without him nothing came to be.
What came to be through him was life, and this life was the light of the human race; the light shines in the darkness,
and the darkness has not overcome it.
In Chapter 5, John continues:
"So Jesus said to them, “Truly, truly, I say to you, the Son can do nothing on his own accord, but only what he sees the Father doing. For whatever the Father does, the Son does likewise" Jesus continued that his purpose was to do the will of the Father.
It appears that while the Father is Creator, without the Word (Jesus) nothing came to be.
In Chapter 14, John writes of the Holy Spirit. Basically, the purpose of the Holy Spirit includes:
To be a permanent Helper and Advocate
To teach and remind
To guide into all truth
To testify about Jesus
To provide power and strength
To offer peace
To help in weakness
Personally, I do not see Jesus as less powerful, but in fact the power of God. Different purposes noted in the Trinity does not signify power, but how all work together.