Book excerpt: This is an approach to Christ's impeccability and temptation through exploring and evaluating the theological models that have been developed from the early church to the present day. Drawing from tradition and the relevant biblical evidence, John McKinley argues that Jesus was truly tempted in ways that are closely relevant to the temptations common to us. Having been tempted for us in this way, Jesus can provide true help as the credible example to follow and truly sympathetic ally in the fight against sin. Key to understanding how Jesus remained unable to sin and sharply vulnerable to temptation is the role of the Holy Spirit.