"But this man, because he
continueth ever, hath an
unchangeable priesthood.

Wherefore he is able also to save them
to the uttermost that come unto God by
him, seeing he ever liveth to make
intercession for them.
"Hebrews 7:24-25

Jesus saw in the scriptures that He also
was to be a priest. Not of Levi, for He
was not of Levi but of Melchizedek.

".....Thou art a priest for ever after the
order of Melchizedek." Psalms 110:4

He had to be 33 before He could become
a priest. So He had only 3 years to finish
fulfilling the sriptures before His death.

His Father's words throught the prophets
were the bases of His work, but the Holy
Spirit in Him gave power to the word and
guided Him into all truth.

"Search the scriptures; for in them ye
think ye have eternal life: and they are
they which testify of me. And ye will
come to me, that ye might have life."
John 5:39