In fact righteousness is by faith through Jesus Christ. This was and is the will of God. In Hebrews 5:8, the Bible declares, “Though he were a Son, yet learned he obedience by the things which he suffered” (KJV). Jesus is the son of God and when he was in the wilderness fasting for fort days and nights he had to walk in obedience. His whole life was a life of obedience because he kept doing the will of God.
Remember that Israel was in the wilderness for forty years before entering the land God promised Abraham. Jesus had to identify himself with Israel by going into the wilderness for forty days and nights. He obeyed the word of God and gained everything we all need and that is eternal life. He was not doing something different because he was fulfilling the plan God has for the chosen people.
When the word of God says that you are a chosen generation it means you are a special people of faith like the eight souls he saved during Noah’s flood. In Christ you are chosen by God just like Israel was chosen. During Noah’s flood the rain fell for forty days and Jesus also fasted for forty days. This is how water baptism is really known to be from God. Eight souls in the Ark crossed over to the new world. It was a new beginning and in Christ we also crossover to a new beginning.