Jacob was a deceiver. He was a person who laid traps to ensnare other people. But one day God told Jacob that He was going to change his name. You are now Israel, which means, "God prevails". We have a choice in our own lives, we can live like Jacob, or we can choose to live like a Christian.
There are some names that you just don't want to have, and Loammi is one of those names. It means, not mine. Loammi was a product of his mother's harlotry. And everywhere he went people knew that he wasn't Hosea's son. But then something wonderful happens, his name is changed to Ammi, which means, mine.
God made a covenant with Abram, and in doing so He gave Abram part of His name and He took Abraham's name and made it a part of His name. In the same way, Jesus took on our name, Son of Man, and gave us His name, Christian. How are we representing Him to this world?
Saul tried to earn his way to heaven by doing good works, but then one day everything in his life changed. He had an encounter with the risen Lord. At that point he realized that it wasn't about what he could do, but it was about what Jesus had already done!