When we hear the word “impeccable” we think about someone being smartly dressed with not a hair out of place, or a room that is perfectly cleaned with not a speck of dust to be found. But this is not what is meant when we refer to the impeccability of Jesus.
W.G.T. Shedd, in his Dogmatic Theology, says, “an impeccable will is one that is so mighty in its self-determination to good, that it cannot be conquered by any temptation to evil however great.”
The church has always affirmed that Jesus did not sin (1 Peter 2:22). But this is not the doctrine of the impeccability of Christ. The impeccability of Jesus states that not only did Jesus not sin, but that Jesus could not sin.
How can this be? He was completely man, he felt hunger, fatigue and pain. But he was also completely God and there is no sin found in God.
“While the person of Christ could therefore be tempted, there was no possibility of sin entering the life of Him appointed from eternity to be the spotless Lamb of God.” - Theological Journal Library
The question we need to ask is, “so what?” What does it matter that Jesus could not sin?
1. We once again get to see how very “other” Christ is. Jesus was non posse peccare, not able to sin. We, however are, non posse non peccare, not able not to sin.
We cannot really imagine temptations being real and yet not being able to sin because sin not only surround us but is in us. We cannot escape it.
We get a glimpse of Christ’s awesome glory and the striking difference between him and ourselves. A difference we cannot even begin to understand, yet it does lead us to worship.
2. We have hope of one day escaping our sin. When Jesus returns we will be made like Him (1 John 3:2; Phil 1:6)-- sinless in every way. We get to look forward to a day where sin will no longer be an issue even within our own hearts. Where we will be like our Savior, the sinless lamb of God, the perfect one, the one with whom there is no sin.
To read more on the impeccability of Jesus and how his temptations were still very real, read Dr. Bruce Ware’s, The Man Christ Jesus.