The promise to be wherever you go comes with a command. It is a command on how to utilize your faith and put it into action. God commands that you be strong and courageous. If you trust Him, then you do not doubt or have fear when the unknown comes, feel unprepared, or an obstacle that you can't defeat on your own.
God's promise was made after Moses died and his apprentice Joshua was taking over the leadership role of the Israelite nation. It was Joshua's job to help each tribe get their portion of the promised land. He understood that they were not going to walk in and the people just give it to them. They had to conquer what was rightfully theirs from God.
This was a big and intimating task, but Joshua had the faith to make it happen. He never did waver in all the time in the wilderness and he was not going to waver now that he was in charge. His faith was stronger than intimidation, fear, or anxiety. He appeared self-reliant because he leaned heavily on God. He was not perfect, but his faith made him the right leader for this place in history.
This command and promise still stand today. Giving God the authority in your life is not a suggestion. It is a command that comes with the power of having God's presence in your life. This power enables you to over any fear. It will help you become bold as you conquer any negativity in your life like dismay, depression, discouragement, dread, or doubt. As you become bold your panic will disappear.
If you reject God, then you will not have His presence, protection, or comfort in life. He will give you over to the life you chose and allow you to face the consequences alone. Your life is your testimony. Once day you will face God even if you do not believe in Him now. What will your life say about you? Will it declare that God was with you or you did life on your own? Is God your salvation or your condemner?
If you trust God enough not to fear the future, unknown, or unexpected, then you will become strong and courageous. When you embrace this faith you understand that God is with you. He prepares the way. He watches your back. He protects you when you sleep. He is there even when you can't feel His presence. The promise He made to you is to be actively present in the good times and with every challenge you face. He is your reassurance in life that makes you brave.
Deuteronomy 31:7-23, Joshua 1:9, Psalm 27:1, & Jeremiah 1:8