God knew you, as he knew Jeremiah, long before you were born or even conceived. He knew you, thought about you, and planned for you. When you feel discouraged or inadequate, remember that God has always thought of you as valuable and has had a purpose in mind for you.
Each Christian has a purpose in life, but some are appointed by God for a specific kind of work. Samson, John the Baptist, and Paul were each called to do a particular job for God. If God gives you a specific task, accept it cheerful and do it with excellence. If God has not given you a specific assignment, then seek to fulfill the mission common to all believers - love, obey, and serve God - until such time as his guidance becomes more clear.
Often people struggle with new challenges because they lack self-confidence. They feel they have inadequate ability, training or experience. Jeremiah thought he was too young and inexperience to be God's spokesman to the world. But God promised to be with him. We must never allow feelings of inadequacy to keep us from obeying God's call. He will always be with us. If God gives you a job to do, he will provide all you need to do it.
God's message to Jeremiah was like his message to Moses: the God who made our mouths can provide the words he wants us to speak.
Jeremiah predicted that after the destruction of the nation, God would send a new Shepherd, the Messiah.
God still restores his people by renewing their hearts. We can have assurance of a new heart by loving God, trusting Christ to save us, and repenting of our sin.
Jeremiah served God faithfully for 40 years. During that time the people ignored, rejected, and persecuted him. He remained faithful to God.
People's acceptance or rejection of us is not the measure of our success. God's approval alone should be our standard for service. We must bring God's message to others when we are rejected.
Reference summary used from the Life Application Bible, KJV; Tyndale Publishers Inc; Wheaton, IL