Have I not commanded you? Be strong and courageous. Do not be afraid; do not be discouraged, for the LORD your God will be with you wherever you go. (Joshua 1:9 NIV)
It is important to trust God in all things. We are to trust God to give us what we need, but not necessarily what we want. When we put God first in everything, there is no need to be anxious.
Jesus tells us not to worry. “Do not worry about your life, what you will eat or what you will drink; nor about your body, what you will put on.” Your heavenly Father provides food for birds and beautiful clothing for flowers, and you are worth much more than them. So “seek first the kingdom of God,” and “do not worry about tomorrow, for tomorrow will worry about its own things,” (Matthew 5:25-34).
The command “Do not be afraid” occurs about 100 times in the Bible. It’s not there to make us worry about being anxious, but to reassure and encourage us to let go of fear. It is repeated again and again because the Lord knows that we need that reassurance often.
It can be discouraging to send away anxious thoughts only to find yourself obsessing about them five minutes later. When this happens, remember that God’s Word instructs us to trust Him in all things. Let God have your anxious thoughts and trust Him to give you His peace that surpasses all understanding.
"No worry and no anxiety, this is how God wants us to live as His children. Every tomorrow has two handles. We can take hold of it with the handle of anxiety or the handle of faith." - Henry Ward Beecher