It’s a pretty common formula in movies: the main character or group is tasked with securing some desirable object or treasure either for themselves or on behalf of someone else. After overcoming obstacles and adversity from things like boobytraps, rivals, or villains, they eventually succeed in getting their hands on the object. However, getting their hands on it is only part of the job; the rest of the challenge is getting away with it and/or being able to get it to the person who requested it. If that doesn’t happen then the job was only half done. And half done isn’t good enough.
When we explain to others why Jesus’ birth is such a big deal in Christianity, it isn’t uncommon to offer the simple explanation that Jesus had to be born so that he could die on the cross to pay for our sins. And this is true. But if Jesus’ death was the only reason we understand that he had to be born as a man, then the job would be only half done. And half done isn’t good enough.
Because if we just fast-forwarded to Jesus’ death, as if what happened between his birth and death didn’t matter, we would be missing a big part of what made his death so significant. In order for his death to matter, he had to be the perfect sacrifice. And in order to be the perfect sacrifice, he had to live perfectly, without any sin whatsoever. When later reflecting on Jesus’ life, that was exactly what Peter described: “For you know that it was not with perishable things such as silver or gold that you were redeemed from the empty way of life handed down to you from your ancestors, but with the precious blood of Christ, a lamb without blemish or defect. He was chosen before the creation of the world, but was revealed in these last times for your sake” (1 Peter 1:18-20).
While the prophet Isaiah served seven centuries before Jesus’ birth, his words before are still serving us twenty centuries after Jesus’ birth! More than any other prophet, Isaiah delivered descriptive details that specified the Messiah with precision. God used Isaiah in a unique way at times in his ministry to speak as the Savior himself. We read Isaiah’s words, but we hear Jesus’ voice. The specificity and precision of Isaiah’s words don’t allow for us to take his words in any other way than as those of Jesus himself. And, since we have the added blessing of the New Testament as a historical cross reference, we can see through Isaiah’s writings when and how Jesus’ words and works were carried out. Through them, we have confidence that Jesus didn’t leave the job only half done, but flawlessly carried out the mission his Father entrusted to him and secured our salvation.
As we consider the first portion of the verses from Isaiah 50, the Gospel this morning provides an excellent example. Through the written word of Isaiah, Jesus said, “The Sovereign Lord has given me a well-instructed tongue, to know the word that sustains the weary. He wakens me morning by morning, wakens my ear to listen like one being instructed. The Sovereign Lord has opened my ears” (Is. 50:4-5a). Luke gives us a glance of Jesus’ “well-instructed tongue” in action as he dialogues with the religious leaders in the temple as a boy. He isn’t there merely as student, but as teacher, already at a young age enlightening all who would listen to his instruction. Even as a boy, Jesus knew “the word that sustains the weary.”
As the Gospels provide us with the narrative of Jesus’ life and ministry as an adult, we also see his dedicated love and commitment to his Father and the Word. He worshiped regularly, teaching in the synagogues as he was allowed. But even when he was no longer welcomed or invited to speak in the synagogues, that didn’t deter his teaching the Word of God. He delivered his Sermon on the Mount, he taught one-on-one, and he directly instructed his disciples repeatedly. He took one-on-one time with his Father in prayer and devotion. He honored God’s name through his unwavering commitment and dedication to Word and worship.
How desperately we need a Substitute Savior to do what we so often defer and even despise! How many Christians that belong to a local congregation did not set foot inside their church even once in 2024? What does that say about where God’s Word and worship rank in their lives, and ultimately, what they think of God? Do you know that there are some who belong to a local congregation who did set foot inside their church many times in 2024, but who might as well have been somewhere else, since their hearts and minds were filled wisth other priorities? Do you know there are those who belong to a local congregation who hardly ever crack open their Bibles and who pray sparingly, as if prayer was a paycheck and every day is like the end of the month? See how desperately we all need not just a Savior to pay for our disregard of Word and Worship, our failure to love God perfectly, but also a Savior to keep it perfectly for us!
Nor did he stop there. We also hear Jesus speak through the written word of Isaiah about his resolute determination to fully adhere to God’s command to obediently and perfectly love our neighbor. “I have not been rebellious, I have not turned away. I offered my back to those who beat me, my cheeks to those who pulled out my beard; I did not hide my face from mocking and spitting. Because the Sovereign Lord helps me, I will not be disgraced. Therefore have I set my face like flint, and I know I will not be put to shame” (v. 5b-7).
While we see these words most clearly fulfilled during the week of Jesus’ Passion, when he endured the suffering that led up to his crucifixion, by no means was it the only time Jesus kept his faithful obedience on track. He was constantly challenged throughout his ministry, questioned and tested, but never lost his composure or despised even his enemies, and always loved with a perfect love. And, even though Satan tried to deter him from following the path of obedience that led to Jerusalem and the cross, he was resolute in his determination to finish the job. Through all of this Jesus was fulfilling God’s command to perfectly love his neighbor.
How desperately we need a Substitute Savior to do what we on a daily basis fail miserably to do: lovingly obey, love our neighbors – including our enemies – and faithfully carry out our callings with resolute determination! Our obedience is often conditional: we’ll follow the rules so long as we agree with the rules, but they’re optional otherwise. Our love for others is also often conditional: we’ll love those who love us back or at least acknowledge or appreciate our efforts, but those who are negative or even just neutral sometimes are undeserving of our love. Our commitment and dedication are also often conditional: we’ll follow through, depending on what’s in it for us (assuming we also don’t get bored, sidetracked, or lose interest!). See how desperately we need a Substitute Savior to do what we on a daily basis fail miserably to do: lovingly obey, love our neighbors – including our enemies – and faithfully carry out our callings with resolute determination!
Jesus was so confident in his outward obedience because he knew nothing was hidden in his heart that would disqualify him from the perfection required as our Savior. “He who vindicates me is near. Who then will bring charges against me? Let us face each other! Who is my accuser? Let him confront me! It is the Sovereign Lord who helps me. Who will condemn me? They will all wear out like a garment; the moths will eat them up” (v.8-9).
How desperately we need a Substitute Savior to do what we on a daily basis fail miserably to do: maintain perfect obedience not only externally, but from a pure and holy heart! Our Christian lives are so much like a poorly chosen gift that is dutifully wrapped. We get better at making sure the outside looks good, putting in much effort to come across as having our lives together, but once the outside wrapping comes off, what is revealed inside is exposed. Our minds think thoughts and our hearts entertain emotions and feelings that would clearly condemn us, but because we are able to keep our lips sealed and our outward actions inline, we fool even ourselves into thinking that we’re not half bad. But we are not like Jesus – Satan’s accusations stick when it comes to us, because we cannot hide from God what is inside. How desperately we need a Substitute Savior who had nothing to hide inside, because his heart alone was pure and holy.
Jesus’ pure heart and absolute confidence gave Paul – and it gives us – the same confidence against the accuser, Satan, and any other accusers who would stand with him. Because of Jesus’ perfect record of obedience – externally and internally in the core of his pure heart – we express the same confidence: “Therefore, there is now no condemnation for those who are in Christ Jesus… Who will bring any charge against those whom God has chosen? It is God who justifies. Who then is the one who condemns? No one. Christ Jesus who died—more than that, who was raised to life—is at the right hand of God and is also interceding for us (Romans 8:1, 33-34).
As swiftly as time flies by, we’ll be into the season of Epiphany, which will usher in another Lent, where we will end up at the all-too-familiar place of the cross. Again we will stand in bewildered appreciation for our Savior who was willing to die as our perfect sacrifice. For our sins it was necessary for him to die.
But, for our righteousness it was necessary for him to live. Not one to leave the job half done and not good enough, appreciate that Jesus first carried out the important work of our salvation by being willing to live as our Substitute. As our celebration of Christmas continues, rejoice with double the joy, for the one born in Bethlehem was not born only to serve as our Sacrifice, but also our Substitute. This Gift of God, his Son, is truly the perfect and complete gift we all need this Christmas and for eternity.