What does the Bible say about fulfilling God's purpose in our lives?

In Genesis 49:33, it is shown that Jacob did not die until all that God had commanded him to do was finished. This underscores a profound theological truth that aligns with the sovereignty of God: each individual has a God-given purpose that must be fulfilled before their time on earth ends. In a similar vein, our Lord Jesus exemplified this, declaring in John 17 that He had finished the work given to Him. This assures us that believers can trust that their lives have meaningful purpose predestined by God, and they will be sustained to meet those purposes.