Hebrews 1:3 Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high:

Jesus is the express image of His person because of the Holy Spirit that Dwells within Jesus. Remember, Jesus was fathered by God not by the seed of man! Therefore, he is God on the inside! Mary parts is the outside (the flesh). God’s part is the inside and God’s part took over Mary’s part and expressed the image of God. Jesus always did everything to please the Father!

Hebrews 4:15 For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.

Jesus never sinned. He is the perfect offering to destroy the works of sin! He walked in the Spirit and not in the flesh! He received the Spirit without measure; therefore, he was able to bring that flesh under and cause it to submit to the will of God! We are taught to be full of the Spirit, so we won’t fulfill the lust of the flesh.