Okay so the trinity contains a human being. The trinity is really a quadrinity or a Trinitarian hypostatic union. Do you believe Melchizedek was Jesus?
God became a man, that he might die as a man condemned of God
In other words, God adopted a human soul, then condemed himself to die. Frankly that is cheating. We cant do the law "perfectly", so God manufactures a new man, born by virtue of the holy spirit impregnating a human woman, a hypostatic union of 100% God and 100% man, thereby it is impossible for this new man to sin, since G-d can't be in the presence of sin. Jesus was rigged. That is cheating. Only a perfidious god would do that. If I would have been born by a relationship between God and a woman, if I were a hypostatic union, I could have been sinless too. So, frankly Jesus accomplishments were'nt really that big of deal. Jesus cheated?!
In Jesus, God fully experienced humanity including temptation that was real. That is not cheating, the temptations were real, he could have failed, but he didn’t
7During the days of Jesus’ life on earth, he offered up prayers and petitions with loud cries and tears to the one who could save him from death, and he was heard because of his reverent submission. 8Although he was a son, he learned obedience from what he suffered 9and, once made perfect, he became the source of eternal salvation for all who obey him 10and was designated by God to be high priest in the order of Melchizedek.Hebrews 5:7-10