It is said that absolute knowledge requires no faith.
So my question for you is did jesus walk by faith or knowledge?
Apparently, during his incarnation, Jesus did not walk in absolute knowledge.
For example, in relation to a yet future day, Jesus said:
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But of that day and that hour knoweth no man, no, not the angels which are in heaven,
neither the Son, but the Father." (Mark 13:32)
Even after His resurrection from the dead and ascension back to the Father in heaven, Jesus needed to have certain end-times events revealed to him by the Father:
Revelation chapter 1
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1]
The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John:
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2] Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.
As far as "faith" is concerned, we read:
"Now faith is the substance of things hoped for, the evidence of things not seen." (Hebrews 11:1)
Seeing how "faith is the substance of things hoped for", it seems to me that Jesus required "faith" because we know that he "hoped for" certain things, like his resurrection from the dead, during his incarnation.
We read:
Acts chapter 2
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22] Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know:
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23] Him, being delivered by the determinate counsel and foreknowledge of God, ye have taken, and by wicked hands have crucified and slain:
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24] Whom God hath raised up, having loosed the pains of death: because it was not possible that he should be holden of it.
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25] For David speaketh concerning him, I foresaw the Lord always before my face, for he is on my right hand, that I should not be moved:
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26] Therefore did my heart rejoice, and my tongue was glad;
moreover also my flesh shall rest in hope:
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27] Because thou wilt not leave my soul in hell, neither wilt thou suffer thine Holy One to see corruption.
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28] Thou hast made known to me the ways of life; thou shalt make me full of joy with thy countenance.
Peter preached these words in relation to Jesus Christ, and Jesus needed to have "hope" (vs. 26) that the Father would raise him from the dead, and this "hope" was based upon his "faith" in what had been written in the 16th psalm concerning him (Luke 24:44).
There, we read:
Psalm 16
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8] I have set the LORD always before me: because he is at my right hand, I shall not be moved.
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9] Therefore my heart is glad, and my glory rejoiceth:
my flesh also shall rest in hope.
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10] For thou wilt not leave my soul in hell; neither wilt thou suffer thine Holy One to see corruption.
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11] Thou wilt shew me the path of life: in thy presence is fulness of joy; at thy right hand there are pleasures for evermore.
Hopefully, this helps to answer your question.