Hasn't God's Word changed?

Many products in our world today change all the time. For example, cell phone companies often will exchange your favorite model for the new one.
Other products, though, never change. Coca-Cola has not changed their formula in over 100 years. They attempted to change it in the 1980s, but it was an utter failure. Customers were angry that the company had changed the flavor of their most precious soft drink.
In some ways, God’s Word is like Coca-Cola, or some other long-standing favorite item. “You cannot mess with perfection.” God’s Word is perfect in every way because it is given to us by a perfect, holy God.
And yet there are many times and places where we would like to change his Word. We would like it to say something different. Maybe it just seems too old-fashioned and we’re tempted to think it no longer applies to the 21st century. Maybe we would like it to say something different about marriage or sexuality. Maybe we do not like what it has to say about creation or right-to-life issues.
The problem is, if we change God’s Word, it is no longer God’s Word. It becomes our own word.
In Numbers 23:19, God says this: “God is not a man, that he should lie, nor a son of man, that he changes his mind. Does he say something, and then not carry it out? Does he speak, and then not bring it about?”
God does not change his mind, nor does he change his Word or his Law. That might terrify us. What God said over three thousand years ago concerning his moral law still applies to us even today!
But there is also comfort in the fact that God’s Word does not change. In Hebrews 13:8 it says: “Jesus Christ is the same yesterday and today and forever.”
Yes, God’s Law does not change, but thankfully neither does his Gospel. Jesus Christ still forgives sins. He forgives all who come to him, repenting, turning to him in faith. He eagerly offers full and free forgiveness. Now and always.
And that reminds me of a story. … One day, before leaving for work, a father asked his son to mow the lawn. After dad left, the son thought to himself, “I’m not going to mow the lawn. I’m going to play baseball and have fun!” So he headed into the backyard with his bat and ball. After a few swings and misses, the boy smacked a hard line drive that broke the kitchen window! Then he fell on his knees in tears, wondering what he was going to do. His dad had told him to mow the lawn, and now the window was broken. The next-door neighbor saw all of this and felt pity for him. He came and asked what was wrong, and the boy told him the entire story. The neighbor had compassion on the boy and offered to help him replace the window. However, even after the window was fixed, do you think that boy’s father would be happy with him? No. The son had not done what his dad had asked: mowing the lawn. Thankfully, the neighbor helped with that too. He quickly took care of it with his riding lawn-mower just before the dad got home from work.
This story illustrates what Christ has done for us. Jesus paid for what we have broken. He did that on the cross for us. He paid the punishment and price for our sins by shedding his holy blood. In addition to this, he has also fulfilled what God required of every one of us: to follow his commandments perfectly, to love God, and to love our neighbors as ourselves.
The Apostle Paul wrote: “For just as through the disobedience of one man the many became sinners, so also through the obedience of one man the many will become righteous.” (Romans 5:19)
Because of Jesus’ perfect obedience throughout his life and because He gave up his life on the cross, you and I are now made right with God. What a precious, loving Savior we have! And what comfort to know that his Word does not change. 
(Adapted from Good News for You! 2020)