“He Himself took our infirmities and bore our sicknesses.”—Matthew 8:17 JNN 241.1
With what intense interest was this controversy watched by the heavenly angels and the unfallen worlds, as the honor of the law was being vindicated. Not merely for this world, but for the universe of heaven, was the controversy to be forever settled. The confederacy of darkness was also watching for the semblance of a chance to triumph over the divine and human Substitute of the human race.... JNN 241.2
But Satan reached only the heel; he could not touch the head. At the death of Christ, Satan saw that he was defeated. He saw that his true character was clearly revealed before all heaven, and that the heavenly beings and the worlds that God had created would be wholly on the side of God. He saw that his prospects of future influence with them would be entirely cut off. Christ’s humanity would demonstrate for eternal ages the question which settled the controversy. JNN 241.3
In taking upon Himself our nature in its fallen condition, Christ did not in the least participate in its sin. He was subject to the infirmities and weaknesses by which humanity is encompassed, “that it might be fulfilled which was spoken by Esaias the prophet, saying, Himself took our infirmities, and bare our sicknesses” (Matthew 8:17). He was touched with the feeling of our infirmities, and was in all points tempted like as we are. And yet He knew no sin. He was the Lamb “without blemish and without spot” (1 Peter 1:19). Could Satan in the least particular have tempted Christ to sin, he would have bruised the Saviour’s head. As it was, he could only touch His heel. Had the head of Christ been touched, the hope of the human race would have perished. Divine wrath would have come upon Christ as it came upon Adam. Christ and the church would have been without hope. JNN 241.4
We should have no misgivings in regard to the perfect sinlessness of the human nature of Christ. Our faith must be an intelligent faith, looking unto Jesus in perfect confidence, in full and entire faith in the atoning Sacrifice. This is essential that the soul may not be enshrouded in darkness. This holy Substitute is able to save to the uttermost; for He presented to the wondering universe perfect and complete humility in His human character, and perfect obedience to all the requirements of God.—Selected Messages 1:255, 256. JNN 241.5
Further Reflection: How can I be as perfect in my sphere as Christ was in His? JNN 241.6