To be tempted is not to be culpable. We see even in the temptations of Christ in the desert that he was tempted with food, with power and with fame, just as we are tempted, yet he was not attracted by these temptations because His will was not aimlessly drifting this way and that, as our is, but being united with the Word, the human will functioned entirely in conformity with the Divine will of the one who had assumed it.
Christ did not become man, while remaining what He is, so that He might find out what a tough life we have, as it were, rather He became what we are so that He might infuse our humanity with His Life and Power. He came to save us, not to sympathise with us. (Though of course He sympathises.)
A drowning man does not need another drowning man to rescue him, but he does need someone strong and confident and a powerful swimmer to enter into his circumstances and get wet and cold, so to speak.
I think this is why some of the Old English materials (and elsewhere) describe Christ as a young warrior. We need a Saviour to stand with us, but we don't need someone weak like us, we need someone who enters into our situation but in his own strength changes our situation for the better.
So He faces our temptations in our humanity, but He is not like us because He (the person who has become fully and perfectly man) is in fact God. He alone has the power of His divine life to renew the divine spark as it were in our humanity. He is the Second Adam who does things properly this time in obedience to the Father. He is both in continuity with us in our weak humanity that grows tired and hungry, but there is a discontinuity because He is also God. He does not have a human will which is bound or liable to make wrong choices because it is not completely united to God as in our case, like a cheap compass that doesn't consistently face North, rather His human will, united to His Divine will, is like a magnet always facing North without fail. Because He who wills in both His humanity and Divinity is the Word.
As has been written:
His human will follows and that not as resisting and reluctant, but rather as subject to his divine and omnipotent will. For it was right that the flesh should be moved but subject to the divine will, according to the most wise Athanasius. For as his flesh is called and is the flesh of God the Word, so also the natural will of his flesh is called and is the proper will of God the Word, as he himself says: “I came down from heaven, not that I might do mine own will but the will of the Father which sent me!” where he calls his own will the will of his flesh, inasmuch as his flesh was also his own. For as his most holy and immaculate animated flesh was not destroyed because it was deified but continued in its own state and nature (ὄρῳ τε καὶ λόγῳ), so also his human will, although deified, was not suppressed, but was rather preserved according to the saying of Gregory Theologus: “His will [i.e., the Saviour’s] is not contrary to God but altogether deified.”
So He always says No to sin. He always has His united human and Divine will fixed on doing the will of the Father. And His No to sin is a Yes to life because Sin is a negation of life. His very becoming flesh begins to transform His humanity because it is deified even while it remains complete humanity.
He is tempted in all things as we are, but He overcomes temptation in His humanity, there is no dilly-dallying with temptation. He just says no! He didn't come to allow temptation to have a foothold in our hearts and minds, as we so often do, he came to crush the power of Satan.
He is a mighty warrior, assuming the weakness of our flesh, but as we see at the Transfiguration He is filled with all the fulness of the Godhead. He comes to destroy all the works of the enemy, and He does so, in His flesh, so that the power of the enemy can be broken in all flesh by union with Him.
He was 'tempted' as we are, but He did not 'give in' to temptation as we do. Just as a life-guard might be wet and cold as we are if we are drowning, but he is not drowning Himself or we are both lost, and Christ, the God-man, never falls under temptation, or He is lost as we are.